Vet.Physiology

Question 1

Fermentation in the gastro-intestinal tract of carnivores occurs in?

Answer 1

Large intestine

Question 2

What organelle performs intracellular digestion?

Answer 2

Lysosomes

Question 3

When contraction of a whole muscle belly occurs without relaxation, the muscle is said to be in state of?

Answer 3

Tetany

Question 4

The rapid depolarization of the membrane after threshold is reached and reached by the entry of this ion into the cell.

Answer 4

Sodium (Na)

Question 5

What do you call the myelinated part of the neuron?

Answer 5

Axon

Question 6

The P wave component of a normal complex is caused by the depolarization of the?

Answer 6

Atria

Question 7

The neuromuscular junction is the synapse between a neuron and a:

Answer 7

Skeletal muscle

Question 8

This substance mediates fibrinolysis.

Answer 8

Plasma

Question 9

Polymorphonuclear cells (PMNs) is also known as:

Answer 9

Neutrophils (Basophils and eosinophils)

Question 10

The volume of distribution of this substance approximates the volume of the ECF compartment.

Answer 10

Evan’s Blue

Question 11

Site of tricarboxylic acid (TCA) cycle.

Answer 11

Mitochondria

Question 12

What are the cells that posses least negative resting membrane potentials?

Answer 12

Smooth muscles - 50 mv

Question 13

When the blood comes from the system circulation, it enters the heart via?

Answer 13

Vena cava

Question 14

The volume of the blood pumped out of the heart per minute is called:

Answer 14

Cardiac output

Question 15

The portion of the nephron referred to as the renal corpuscle:

Answer 15

Glomerulus + bowman’s capsule

Question 16

Which WBC is most numerous in goats, sheep, cows and pigs?

Answer 16

Lymphocytes

Question 17

Approximate life span of erythrocyte (RBC) in most domestic animals?

Answer 17

80-150 days

Question 18

Which of the ff.most accurately approximates the amount of blood in an animal?

a. 2% of BW
b. 16% of BW
c. 8% of BW
d. 24% of BW

Answer 18

8%

Question 19

Icterus is present in a dog upon physical examination and severe liver disease is apparent. Which form of bilirubin is most likely cause of the icterus?

Answer 19

Free bilirubin

Question 20

Where is erythropoietin produced?

Answer 20

Kidney

Question 21

It is the ability of the cat to land on its feet when dropped from a position of its feet in a skyward direction is known as?

Answer 21

Righting reflex

Question 22

Because of its greater work, the heart chamber with the greatest muscle mass is the:

Answer 22

Left ventricle

Question 23

It is the maintenance of constant environment within the body.

Answer 23

Homeostasis

Question 24

T/F: The negative feedback loops are homeostatic?

Answer 24

True

Question 25

T/F: The positive feedback loops are homeostatic?

Answer 25

False: Not homeostatic

Question 26

It negates or oppose the initiating factors or stimulus and is a series of change that return the factor toward a certain mean values.

Answer 26

Negative feedback loops

Question 27

It is also known as the vicious cycle because it does not lead to stability but to instability and often death.

Answer 27

Positive feedback loops

Question 28

All of the following are examples of what feedback mechanism? After hemorrhage Blood pressure drops Hearts ability to pump blood decreases

Answer 28

Harmful Positive Feedback

Question 29

T/F: Most of the proteins present in the cell membranes are glycoproteins?

Answer 29

True

Question 30

Its function is to transport hydrophilic polar substances and ions across the membrnes and to act as signalling or transducing sites to conduct messages across the cell membrane.

Answer 30

Cell membrane