MediCat - O abordare revoluţionară a colectării probelor feline de urină / nisip

MediCat - O abordare revoluţionară a colectării probelor feline de urină


Se poate cumpara de pe amazon:

sau cautand pe Google " sand collection of urine samples"



(01.12.2011) Pisicile sunt predispuse bolilor renale şi ale tractului urinar inferior. Obţinerea unor probe de urină de la pisici este stresantă şi dureroasă atât pentru pisică cât şi pentru proprietar.

Metodele clasice de colectare consumă timp medicului veterinar şi de cele mai multe ori procesul de colectare este scump.

În vederea efectuării examenului de urină, se poate recurge la:
  • Recoltarea în urma micţiunii spontane;
  • Compresiunea abdominală manuală;
  • Cateterismul uretral;
  • Cistocenteză.
Recoltarea în urma micţiunii spontane
  • Avantaje: cea mai puţin stresantă pentru animal (şi pentru proprietar!)
  • Dezavantaje: majoritatea motanilor urinează NUMAI în litieră, urina este contaminată şi nu se pretează examenului bacteriologic.
Compresiunea abdominală manuală
  • Avantaje : metodă non-invazivă ce permite recoltarea unei urine similare din punct de vedere calitativ cu cea obţinută în urma micţiunii spontane.
  • Dezavantaje : prezintă riscul de producere a rupturii vezicii urinare, mai ales dacă distensia acesteia este importantă (blocaj uretral vechi).
Cistocenteza
  • Avantaje : permite recoltarea urinei în condiţii de sterilitate perfectă, aceasta pretându-se pentru urocultură; de asemenea, permite decomprimarea vezicii urinare în situaţiile în care cateterizarea uretrei este imposibilă.
  • Dezavantaje : este o manoperă invazivă, adesea percepută negativ de către proprietar; dacă este efectuată incorect, poate duce la deşirări ale peretelui vezical, hematoame şi uroperitoneu.
MediCat este noua metodă non-invazivă folosită pentru colectarea probelor de urina feline necesare testelor de laborator şi examinării vizuale, facilă medicilor veterinari şi iubită de pisici şi proprietarii lor. MediCat nu este toxic, respinge apa, este lipsit de bacterii, se comportă ca un nisip normal şi este prietenos cu mediul înconjurător.

DIN GRIJA PENTRU PISICI

MediCat este soluţia non-invazivă şi lipsită de bacterii dezvoltată pentru medicii veterinari şi proprietarii de pisici pentru colectarea probelor de urină pentru testele de laborator şi examinarea vizuală.
Foloseşte MEDICAT împreună cu banda de testare a urinei pentru a obţine rapid şi eficient rezultatele testelor de care ai nevoie!
Un test de urină (strip sau banda de testare urină) este un instrument de diagnosticare  folosit pentru a determina modificări patologice ale urinei feline. Strip-ul te va ajuta să determini următoarele analize: 
  • sânge
  • bilirubină
  • nitriţi
  • glucoză
  • densistate
  • urobilinogen
  • proteine
  • cetone
  • PH
  • Leucocite
Împreună cu MEDICAT poţi monitoriza uşor şi fără să apelezi la proceduri complicate starea de sănătate a pisicilor. Foloseşte MEDICAT împreună cu strip-ul de testare a urinei pentru pisici SĂNĂTOASE şi stăpânii sunt FERICIŢI!
Distribuitor: A.B.A.D. Vet.
Str. Agricultori, nr 60, Sector 2, Bucuresti / Tel/Fax: 021-327.00.65 / 021-327.00.75


What should I feed my kitten?

What should I feed my kitten?

Article ID: 267
Last updated: 28 Oct, 2015
Revision: 12
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Kittens are essentially baby carnivores with specialised needs. Kittens naturally wean off their mother's milk at around 8-12 weeks of age. In the wild.  When young cats are old enough (around 8 weeks old) they start to eat food on their own whilst simultaneously decreasing the amount of milk they suckle from their mother.

Basic Kitten feeding guide:
  • Talk to your veterinarian for advice
  • Feed a high quality balanced premium commercial kitten food that is appropriate for the life stage and health status of your kitten. Check that it complies with the Australian Standard:Manufacturing and Marketing Pet Food AS5812:2011.
  • You can offer some natural foods to provide some variety
  • Natural foods include human-grade raw meat such as diced up raw lamb meat, pieces of raw chicken meat. Raw food offered to cats should always be fresh. Avoid feeding too much raw meat until the kitten is 20 weeks of age (unless the meat is on the bone e.g. raw chicken wing.) This is important to help avoid certain nutritional deficiencies during growth.
  • First check with your vet that raw meaty bones are suitable for your particular kitten (e.g. some kittens with misshapen jaws may have difficulty chewing on raw bones) 
  • Choose human-grade raw meat and raw meaty bones because some pet meat/pet mince/pet rolls/pet meat and bone products can contain preservatives that can be detrimental to the kitten's health (e.g. sulphite preservative induced thiamine deficiency which can be fatal). However avoid human sausages, sausage meat and cooked manufactured meats as these may contain sulphite preservatives.     
  • Provide some moist foods in the diet regularly e.g. wet can food
  • Cooked meat such as boiled chicken can also be fed occasionally. Please ensure there are no cooked bones, onions/onion sauces or other toxic substances present (see below)
  • Between four to six months of age kittens cut their permanent teeth and grow rapidly
    • Introducing raw meaty bones such as raw chicken necks and raw chicken wings, at around 12 weeks of age ensures they are chewing actively around the time their permanent teeth are erupting.
    • This chewing is important to alleviate "teething" issues and also provides several important health benefits including healthy teeth and gums
    • Bones must always be raw
    • Raw bones should be introduced gradually. The bone must be large enough so that the kitten cannot fit the whole bone in it's mouth or swallow the bone whole.
    • Too many raw bones can cause constipation. One raw bones per week is generally well-tolerated
    • Always supervise your kitten when eating raw bones.
    • Avoid large marrow bones, large knuckle bones or bones sawn lengthwise as cats may crack their teeth on these
    • Never feed cooked bones as these may splinter and cause internal damage or become an intestinal obstruction
  • Different types of fish such as tinned sardines in springwater, tinned tuna and tinned salmon may also be offered as a treat occasionally (care with any fish bones). Please avoid feeding fish constantly.
  • A small amount of vegetable matter may be offered
  • Provide access to grass (avoid chemically treated grass and toxic plants) - kittens will sometimes eat grass which may be a source of vegetable matter and nutrients.
  • Calcium powder supplements should not be given (unless directed by a veterinarian)
  • Please ensure fresh drinking water is available at all times
  • Kittens should be offered food at least 4 times per day
  • Take care not to overfeed or underfeed your kitten. Your vet will be able to weigh your kitten, assess your kitten's body condition score and provide advice
  • Do not feed the following (note this is not an exhaustive list): onions, onion powder, garlic, chocolate, coffee or caffeine products, mouldy or spoiled foods or compost, bread dough, yeast dough, avocado, grapes, raisins, sultanas (including those in Christmas cakes etc), currants, nuts including macadamia nuts, fruit stones (pits) e.g. mango seeds, apricot stones; fruit seeds, corncobs; tomatoes, mushrooms; fish constantly, cooked bones, Salt, small pieces of raw bone or fatty trimmings/fatty foods. Also ensure you pet cat does not have access to string wrappings around rolled roasts or the absorbent pad found under meat when wrapped on trays.

A Guide to Understanding Cat Food Ingredients


FOOD AND DIET

A Guide to Understanding Cat Food Ingredients


shutterstock_125776931-min
What exactly is Ethylenediamine Dihydriodide, and why is it my my cat’s food?
If you’re feeding your cat a commercial food, chances are he’s getting a daily dose of some ingredients that read less like a food label and more like gibberish! While this guide is not all-inclusive, it defines the worst of the worst of the most commonly used ingredients in commercial cat and dog foods, explains their purpose for being there, and details the possible side-effects as a result of regular or continual ingestion.
Although many of these ingredients may be fine in the occasional treat or meal (many of them are in the processed foods we eat, too), cats are, more often than not, fed the same exact meal, day after day, year after year.
To many pet owners, this may (and should) read as a list of ingredients to avoid. When choosing the right food for your furriest friend, look for real named meats (rather than just the term “meat” which could include any variety of animal), whole ingredients, things you recognize. If there are more questions than answers when reading your pet food label, look elsewhere.
Common Pet Food Ingredients (Listed Alphabetically):
*Note: Several ingredients indicate that they may come from “4-D” sources. This means the ingredient can be legally sourced from Dead, Dying, Disabled, or Diseased sources – this can, and sometimes does, include animals that died of natural causes, disease, or were euthanized, and may explain the recent pet foods recalled due to the presence of the barbiturate Pentobarbital, also known as the euthanasia drug.
animal fat Non-descriptive source indicates 4-D fat chemically preserved, difficult to digest, potentially carcinogenic.
animal digest Rendered, by chemical and/or enzymatic process, non-descriptive animal tissues used for flavor.
beef tallow One of the worse kinds of fat, chemically preserved with potential carcinogen. Often produces allergies.
beef by-products Can include any internal part of the cow other than the meat, often from 4-D, rancid sources.
beet pulp Fiber/filler, stills contains enough sugar for rush/addiction to food and hyperactivity.
BHA (a preservative) Chemical. Highly carcinogenic preservative.
blue 2 An artificial coloring meant to enhance a food’s appearance. Offers no nutritional value. Carcinogenic.
bone meal (Non-digestible source of calcium can lead to digestive upset. Can be from 4-D sources.
brewer’s rice Waste product from breweries, cheap, non-nutritive filler can be harsh on intestines and lead to diabetes.
brewers yeast Waste product (used for flavoring, protein, B-vitamins) which can become very toxic to the liver causes allergies and arthritis.
brewers yeast extract (saccharomyces cerevisiae fermentation solubles) Liquid left over from brewery process, condensed. Can become toxic to the liver.
calcium chloride (Used as a source of calcium but can cause digestive upset, heart issues.
calcium propionate (a preservative) Chemical. Potentially carcinogenic, antifungal.
calcium sulfate Firming agent.
cellulose Harsh on bowels, suspected to include recycled cardboard. Can also be crushed peanut hulls.
chicken by-product Ground up carcasses, diseased internal organs, beaks and feet.
chicken by-product meal Ground up carcasses, internal organs, beaks, feet. Concentrated.
corn This controversial cereal grain typically used in pet food is feed-grade (not for human consumption) and can include mold or fungus. Corn is typically considered a cheap filler which is both difficult for dogs and cats to digest and can increase a pet’s blood sugar, leading to diabetes, weight gain, and joint dysfunction.
corn gluten Highly allergenic, adds sugar, is a poor protein source, interferes with digestion.
corn gluten meal Waste product, cheap, non-nutritive filler but used as protein source — can cause allergies and sugar imbalance.
corn oil (preserved with TBHQ) TBHQ contains petroleum-derived butane, can be carcinogenic.
corn starch Terrible filler, causes several health issues including allergies.
corn starch-modified Poor source of nutrients, protein, filler, binder.
dextrose Sugar, feeds cancer, causes hyperactivity, weight gain.
dicalcium phosphate Can become toxic to body — texturizer in can food.
DL-alpha tocopherol acetate Synthetic source, non-nutritive.
dried animal digest Flavor enhancer. Non-descriptive, or un-named animal digest is rendered animal tissue, including rancid or diseased parts.
dried beet pulp Waste product. Cheap filler/fiber-causes sugar rush/addiction to food, hyperactivity and allergies.
dried beet pulp (sugar removed) Waste product. Cheapest, most common filler used, still contains enough sugar residue to cause problems such as hyperactivity and blood sugar imbalances.
dried brewers yeast Can become toxic to liver, waste product of beer and ale industry.
dried capsicum Cayenne powder, can burn stomach.
dried cellulose Very harsh on digestive tract, suspected to include cardboard or peanut hulls.
dried meat by-product Can include tumors and diseased tissues, rancid trim pieces and innards of various animals.
dried plain beet pulp Pure sugar filler — leads to weight gain, hyperactivity and feeds arthritis.
dried whey Can encourage allergies, cheap protein source from cow’s milk.
egg product Cheap source of protein, waste product of egg industry, free of shell.
ethoxyquin (a preservative) The most carcinogenic preservative, most in industry have stopped using it except very cheap, poor quality foods.
fish oil (preserved with mixed tocopherols) Non-descriptive, cheap “fish” source, often rancid prior to preserving with Vitamin E (gimmicky to cover poor quality oil).
food starch Nondescript source can be from any grain, causes allergies, weight gain and poor digestion, cheap filler.
glycerin Sweetens food, used as humectant (keeps food moist), interferes with nutrient assimilation.
glyceryl monostearate An emulsifier (breaks down fats), lethal to lab rats, still under investigation by FDA.
glycine Non-essential amino acid used as antacid, indicates very poor quality food.
ground rice Filler — has been linked to diabetes, always indicates white rice, not whole grain but usually floor sweepings from rice industry.
hydrochloric acid Corrosive ingredient used as modifier for food starch, gelatin, as a pH adjuster and conversion of corn starch to syrup.
iron oxide Can be cultivated from rust.
L-alanine Non-essential amino acid used as supplement in heavy grain-based foods, known carcinogen in lab mice.
L-lysine monohydrochloride Poor source of Lysine (essential amino acid found in meat), cheaper to use for food enrichment for grain-based foods.
lamb by-product Can contain everything internal but the muscle meat including diseased tissue, tumors, etc.
lysine Indicates heavy soy-based food which dogs can die from unless they have lysine to help digest it, best to avoid this diet unless soy is missing.
magnesium oxide Has caused tumors in lab rats, antacid.
manganous oxide calcium iodate Often used in bleaching tallow.
meat and bone meal (natural source of calcium) Non-descriptive indicates 4-D meat, cheapest source, can include diseased tissues plus bone meal can not be digested and assimilated as calcium.
meat and liver meal Can include tumors and diseased tissues, rancid trim pieces and liver of various animals, concentrated.
meat by-products Non-descriptive indicates 4-D meat, cheapest source, can include diseased tissues (tumors) and organs.
menadione dimethylpyrimidinol bisulfite Least beneficial source of Vitamin K activity needed for proper blood clotting.
monosodium phosphate Used as emulsifying agent.
natural and artificial flavors Poor quality of flavor additive, artificial flavors can be carcinogenic.
partially hydrogenated soybean oil Causes digestive upset, premature aging.
peanut hulls 10.8% (source of fiber) Can harm the digestive tract, cheap fiber.
petrolatum Mild laxative effect when ingested. Petroleum is a carcinogen.
phosphoric acid A sequestering agent for rendered animal fats — implies poor quality fats are used, source of phosphorous.
poultry by-product meal Ground up carcasses, can include dead, diseased foul, all internal parts void of healthy meat, includes feet and beaks, concentrated.
powdered cellulose Cheap filler/source of fiber, suspected to include cardboard, causes irritable bowel problems.
propionic acid (a preservative) Potentially harmful mold inhibitor.
propylene glycol Adds sweetness to food, used in some antifreezes. Some preservative action, possible carcinogen.
propyl gallate and citric acid Chemical preservative, can cause digestive upset, stomach irritation, deceptive adding with natural Vitamin C.
rice flour Cheap filler, causes bowel distress and can lead to diabetes in dogs.
rice gluten Can encourage diabetes, a poor protein source/filler.
rice hulls Cheap filler, can be harsh on intestines.
rabbit by-products Includes tumors, ears, carcass, etc.
red 3 Carcinogenic color.
red 40 Artificial color, carcinogenic.
smoke flavor Indicates flavor which can potentially become carcinogenic, retards bacteria on rancid meat.
sodium bisulfate Used as disinfectant.
sodium carbonate Neutralizer for rancid fats, similar to lye.
sodium chloride Table salt — flavor enhancer, preservative, used to cover up rancid meat and fat, can cause kidney and heart disease, hypertension — used to encourage cats to drink.
sodium hexametaphosphate Cheap source of phosphorus can become deadly to dogs — emulsifier, texturizer.
sodium nitrite (for color retention). Potentially highly carcinogenic.
sodium phosphate Non-digestible source of phosphorous (vital to maintaining acid/alkalinity pH).
sodium tripolyphosphate Used as rancid meat preservative.
sorbic acid (a preservative) A mold and yeast inhibitor.
sorbitol Sweetener and binder.
soybean hulls Cheap filler, harsh on intestines.
soybean mill run This is the sweepings off the floor-cheap filler, poor source of protein.
soy flour Cheap source of grain protein, filler, can cause bloat/death in dogs.
starch Cheapest form of carbohydrates causes weight gain and poor digestion, filler.
tallow Causes poor health, disrupts digestion, can include rancid restaurant grease. Very bad fat source.
tetra sodium pyrophosphate rust stain remover used in cleaning products. Used in pet food for emulsification of rendered animal fats. Very toxic, causes nausea and diarrhea.
thiamine hydrochloride Cheapest, poorly assimilated source of Thiamine, Vitamin B-1, needed for nervous system and mental attitude.
titanium dioxide Potentially carcinogenic artificial color used as white pigment.
trace minerals (potassium chloride) Source of potassium to balance pH, small intestinal ulcers may occur, indicates lack of well-rounded supplementation.
trace minerals (sodium tripolyphoshate) Cheap, potentially harmful source of phosphorous indicates lack of well-rounded supplements.
wheat bran Indicates poor quality food, can cause allergies, best to have whole wheat.
wheat flour Poorly digested filler, can cause allergies and bowel problems.
wheat gluten Poor protein source, used as a cheap, non-nutritive filler — causes allergies.
wheat middlings Sweepings off the floor causes allergies and digestive upset.
wheat mill run Sweepings off the floor, causes allergies, digestive upset and feeds arthritis, leads to premature aging.
wheat starch Poor carbohydrate source causes allergies.
yeast culture Flavoring, source of protein, potentially toxic to the liver.
yellow 5 Artificial color, a salicylate which can be become deadly to cats with extended use.
yellow 6 Artificial color, potentially carcinogenic food colorant.
Take a look at your own pet food labels and compare. How many of these common ingredients did you find? Are you comfortable with the explanation for why it’s there?
Did you find any unusual or hard-to-pronounce ingredients not listed above? Leave a comment below and we’ll research that ingredient and add it to the list.
Many pet owners complain that the industry doesn’t always have our pet’s health and vitality as their top priority. And, while this may be true in some cases, it’s ultimately up to us, as pet parents, to make the best choices when it comes to our companions. And, when enough of us are educating ourselves and making better choices, the industry will be left with no option but to follow our lead.

SISTEMUL NERVOS VEGETATIV

SISTEMUL NERVOS VEGETATIV

Sistemul nervos vegetativ  SNV  coordoneaza si regleaz
a functiile organelor interne. Sistemul  vege­tativ este constituit din doua componente: SNV simpatic si SNV parasimpatic (. 26.). Ambele inerveaza ace­leasi organe, avand de cele mai multe ori efecte antagonice. Din aceastadubla actiune rezulta tonusul neuro-vegetativ, care asigura echilibrul dinamic al functiilor vitale.
1.Sistemul nervos simpatic.
Componenta centrala a sistemului nervos simpatic este reprezentata de centrii nervosi aflatin coarnele laterale medulare, unde ajung axonii neuronilor afe­renti din viscere: centrii pupilodilatatori din maduva cervico-dorsala, vasomotori, pilomotori si sudorali din maduva dorsala.
Componenta periferica este reprezentata de lantu­rile ganglionare para-vertebrale (22—25 de perechi de ganglioni uniti prin ramuri interganglionare), plexurile viscerale (celiac, mezenteric superior, mezenteric infe­
rior si hipogastric) si plexurile intramurale*. Caile eferente sunt constituite din doi neuroni. Sinapsa dintre
neuronii preganglionari si neuronii postganglionari se face intr-una din aceste formatiuni nervoase, de regulcat mai aproape de maduva (. 25.).
25. Tipuri de cai motorii simpatice. 1. coarne laterale; 2. radacina motorie; 3. ramura comunicanta alba;  ramura comunicanta cenusie; 5. ganglion din lantul simpatic paravertebral; 6. ganglion previsceral; 7. glanda medulosuprarenala; 8. organe viscerale.
—— neuroni preganglionari (fibre mielinice)
------ neuroni postganglionari (fibre amielinice)
Centrii vegetativi se pot grupa in: centri de comanda (cei din maduva, bulb si mezencefal)si centri de integrare(cei din formatiunea reticulata, hipotalamus si cortex).
Sistemul nervos simpatic se distribuie difuz in peretii organelor, spre deosebire de sistemul nervos parasimpatic care se distribuie in teritorii limitate.
Plexurile intramurale contin atat fibre simpatice, cat si fibre parasimpatice.
Unele formatiuni ganglionare au atat functii de statii de releu, cat si functii de centri reflecsi.
2. Sistemul nervos parasimpatic.
Sistemul nervos parasimpatic are doua compo­nente centrale, care sunt localizate in trunchiul cere­bral sin maduva sacrata.
a) Parasimpaticul cranian. In trunchiul cerebral se afla: nucleul accesor al oculomotorului (III), de unde
provin fibrele parasimpatice ale oculomotorului, nucleii salivator superior si lacrimal, de unde iau nastere fibrele parasimpatice ale facialului (VII), nucleul saliva­tor inferior, de unde pornesc fibrele parasimpatice ale glosofaringianului (IX) si nucleul dorsal al vagului (X), care reprezinta originea fibrelor parasimpatice vagale (tab. 4).
b) Parasimpaticul sacrat. Acesta isi are originea in segmentele medulare sacrate S— S
Componenta periferica a SNV parasimpatic este constituita, de asemenea, din doi neuroni, dar, spre deosebire de SNV simpatic, neuronul preganglionar face sinapsa cu neuronul postganglionar in peretii organelor inervate sau in aproprierea acestora.

                                                                                                   
                                                                                                         
 
. 26. Sistemul nervos vegetativ parasimpatic
             ----------- sistemul nervos vegetativ simpatic
            ——— sistemul nervos vegetativ parasimpatic
3. Fiziologia sistemului nervos vegetativ.
Sistemul nervos vegetativ, la fel ca sistemul nervos somatic, isi desfasoara activitatea prin acte reflexe, avand ca substrat anatomic arcuri reflexe vegetative. Sistemul nervos vegetativ are si un important rol inte­grator, prin armonizarea functiilor vitale si prin asigu­rarea mecanismelor homeostatice.
Centrii nervosi vegetativi realizeaza trei modalitati de integrare:
  integrarea vegetativa propriu-zisa (simpatico-parasimpatica) prin actiunea antagonista a celor dousisteme (exemplu: reflexele pupilare);
— integrarea somato-vegetativa, prin intrepatrun­derea unor functii vegetative cu manifestari ale vietii de relatie (exemplu: contractia musculaturii striate, manifestare somatica, este insotita de vasodilatatie, manifestare vegetativa);
  integrarea neuro-endocrina (exemplu: stimula­rea secretiei hipofizare de catre centrii vegetativi hipotalamici).
           In tabelul 7 sunt redate asemanarile si deosebirile functionale dintre componentele sistemului nervos vegetativ.
Tab. 7. Actiunea SNV simpatic si parasimpatic asupra organelor efectoare.
EFECTORI
EFECTELE SNV SIMPATIC
EFECTELE SNV PARASIMPATIC
Muschi radiari ai irisului
 contractie  dilatarea pupilei
Muschi circulari ai irisului
contractie  micsorarea pupilei
Muschi ciliari radiari
 relaxare  vedere la distanta
Muschi ciliari circulari
contractie  vedere de aproape
Bronhii
 bronhodilatator
bronhoconstrictor
Inima
 cardioaccelerator
cardiomoderator
Vase coronare
 coronaroconstrictie
coronarodilatator
Vase din tegument
 vasoconstrictie
vasodilatatie
Vase din muschi
 vasoconstrictie
vasodilatatie
Vase din creier
 vasoconstrictie
vasodilatatie
Stomac si intestin
—diminuarea tonusului si
      motilitatii
 constrictia sfincterelor
 cresterea tonusului si motilitatii
 relaxarea sfincterelor
Vezica urinara
 relaxarea muschiului cal
— contractia sfincterului cal
     intern
 contractia muschiului cal
— relaxarea sfincterului cal intern
Glande lacrimale

— vasodilatatie, secretie glandulara
    abun­denta
Glande salivare
Glande gastrice si intestinale
— secretie redusa de saliva
 vascoasa
 inhibarea secretiei
 secretie abundenta de saliva apoasa
 stimularea secretiei

APLICATII PRACTICE RECOMANDATE:
1.            Observatii microscopice asupra fibrelor nervoase.
Se spinalizeaza o broasca si se izoleaza nervii sciatici. Se sectioneaza segmente de 2 cm lungime care se asaza pe lame de sticla in cate o picatura de ser fiziologic.
Un capat al segmentului de nerv se tine fix, in timp ce invelisul conjunctiv al acestuia se disociaza longitu­dinal cu ajutorul unui ac de disectie. Fibrele nervoase din constitutia nervului se indeparteaza unele de altele in lateral, cu ace, pentru a le izola.
Preparatul astfel obtinut se etaleaza, se coloreaza cu solutie de albastru de metilen, apoi se acopera cu lamela. Excesul de colorant se indeparteaza cu hartie de filtru. La microscopul optic se pot observa numeroase fibre nervoase, teaca Schwann, mielina si strangulatiile Ranvier.
2.            Demonstrarea efectului sistemului nervos vegetativ asupra muschilor intrinseci ai globului ocular.
Se pregatesc patru sticle de ceas cu ser fiziologic. Se spinalizeaza doua broaste. De la fiecare, cu atentie, se extirpaambii ochi si se pun in ser, cate unul in fiecare sticla de ceas Cate un ochi din fiecare pereche serveste ca martor, iar ceilalti doi pentru experiment.
In serul fiziologic al primului ochi de experiment se adauga adrenalina sau atropina, iar in serul celui de-al doilea se adauga acetilcolina sau pilocarpina.
Se compara ochii pereche si se constata ca:
  ochiul tratat cu adrenalina sau atropina are pupila marita  midriaza* (datorita contractiei muschilor radi­ari ai irisului);
  ochiul tratat cu pilocarpina sau acetilcolina are pupila micsorata  mioza* (datorita contractiei muschilor circulari ai irisului).
Adrenalina si acetilcolina, substante farmaceutice sin acelasi timp mediatori chimici, au actiune simpaticomimetica, prima, si parasimpaticomimetica, a doua. Celelalte doua substante au efecte similare.
EVALUARE

A. Incercuiti literele corespunzatoare raspunsurilor corecte:
Dendritele conduc influxul nervos:
a.            centrifug;
b.            centripet;
c.            eferent;
d.           aferent.
         2. Emisferele cerebrale:
a.            sunt formate numai din substanta cenusie;
b.            sunt formate numai din substanta alba;
c.            sunt legate intre ele prin substanta alba;
d.           prezinta in interior nuclei de substanta cenusie.
         3. Nucleii bazali:
a.            sunt situati  pe traseul  cailor ascendente proprioceptive;
b.            participa   la   reglarea   motilitatii   automate comandate de scoarta;
c. se gasesc pe traseul cailor piramidale directe;
d. au in constitutie neuroni motori.

   Hipotalamusul:
a.            este situat deasupra talamusului;
b.            intervine in reglarea starilor emotionale;
         c.    regleaz
a metabolismul hidric;
         d.   are legaturi nervoase cu hipofiza.
5.            Arhicerebelul:
a.            participa la reglarea miscarilor fine;
b.            are rol important in reglarea tonusului muscular;
         c.  prin extirparea sa determin
a pierderea echili­brului;
  d.  primeste informatii prin caile sensibilitatii pro­prioceptive inconstiente.
6.            Sistemul nervos simpatic:
a.            contracta muschii circulari ai irisului;
b.            contracta muschii radiari ai irisului;
c.            relaxeaza sfincterele digestive;
d.           inhiba secretia glandelor digestive gastrice si intestinale.

B.Notati in spatiile libere din fata cailor nervoase din coloana A, literele din dreptul fasciculelor    nervoase cores­punzatoare din coloana B:
Coloana   A                                                                                         Coloana B
—— 1. Caile sensibilitatii exteroceptive                                  a. fasciculele spinocerebeloase
—— 2. Caile sensibilitatii proprioceptive constiente        b. fasciculele spinobulbare
             —— 3. C
aile motilitatii voluntare                                      c. fasciculele olivospinale
——  Caile motilitatii involuntare                                d. fasciculele rubrospinale
                                                                                          e. fasciculele spinotalamice
                                                                                          f. fasciculele piramidale
C Scrietin coloana din dreapta numele formatiunilor nervoase corespunzatoare cifrelor din imagine:
1.epifiza ———————————————
2.———————————————————     3.———————————————————
———————————————————
5.———————————————————
6.———————————————————
7. talamus————————————————
8.———————————————————        9.———————————————————    10 ———————————————————
12 .——————————————————
D.Analizati ura 26. si stabiliti provenienta fibrelor simpatice si parasimpatice care inerveaza fiecare dintreorganele  prezentate. Descrieti traseul acestora.
ati fibrele preganglionare si postganglionare simpatice, care inerveaza glandele suprarenale, cu fibrele simpatice care inerveaza celelalte organe.