Circulatory 2

Question 1

Pacemaker called are in the ___ node of the _____ ______

Answer 1

SA node of the right atrium

Question 2

After atria contract, the impulse reaches the A-V node located

Answer 2

At the atrio-ventricular junction

Question 3

After the impulse reaches the AV node is goes where

Answer 3

The left and right branches of the Bundle of His

Question 4

The branches of Bundle of His divide into _____ ______ at the apex of the heart

Answer 4

Purkinje fibers

Question 5

The ventricles contract when the electrical impulse makes it to the

Answer 5

Purkinje fibers

Question 6

The impulse is slowest where in the heart

Why

Answer 6

The bundle of his

So the atria and ventricles don’t contract at the same time

Question 7

Cells normally have a __ charge inside and a __ charge outside

Answer 7

Negative inside

Positive outside

Question 8

How the sodium potassium pumps works to cause electrical stimulation of heart cells

Answer 8

Na is pumped out, K pumped in.
When impulse starts at SA node it causes depolarization of cell making it more permeable to Na.
Na rushes in making the inside +. This goes from cell to cell

Question 9

Repolarization of cell

Answer 9

Sodium potassium pump kicks back on to recharge things

Question 10

The pause between heart beats happens because of

Answer 10

repolarization of cells

Question 11

Depolarization occurs during ____

Repolarization occurs during ____

Answer 11

Systole

Diastole

Question 12

Electrical activity in heart can be measured a device to show the

Answer 12

ECG/ EKG

Question 13

What ECG/EKG stands for

Answer 13

Electro c(k)ardio gram

Question 14

Blocks that’s may prevent normal electrical conduction

Answer 14

Myocardial infarction (muscle damage), conduction system problems (nodes), electrolyte imbalances

Question 15

Example of electrolyte imbalance that blocks normal electrical conduction in heart

Answer 15

Milk fever in cattle

Question 16

Rapid heart rhythm

Answer 16

Ventricular fibrillation

Question 17

Blood pressure is measured with a

Answer 17

Sphygmomanometer

Question 18

Heart rate average for 
Elephants 
Horses 
Cows 
Dog/cat
Mouse

Answer 18

Elephants: 20bpm 
Horse: 40bpm 
Cow: 70 bpm
Dog/cat:100-150bpm 
Mouse: 300 bpm

Question 19

What transports hormones

Answer 19

Blood

Question 20

Blood helps balance our

Answer 20

Temperature, water/fluid, acid/base

Question 21

System of vessels carrying blood throughout body

Answer 21

Vascular system

Question 22

Carry blood away from heart

Carry blood to heart

Answer 22

Away: arteries
To: veins

Question 23

Arteries have thick _____ and a small ______

Answer 23

Walls

Small lumen

Question 24

Artery walls are made of

Answer 24

Elastic tissue and smooth muscle

Question 25

Normal blood pressure for cats and dogs

Answer 25

120/80

Question 26

Largest artery

Answer 26

Aorta

Question 27

List from biggest to smallest lumen size | Arteries, capillaries, aorta, arterioles

Answer 27

Aorta, arteries, arterioles, capillaries

Question 28

RBCs move single file through these at the tissue level

Answer 28

Capillaries

Question 29

Responsible for nourishing tissues

Answer 29

Capillaries

Question 30

_____ are like highways, _____ are like exits and slower roads

Answer 30

Arteries, capillaries

Question 31

What an aneurysm is

Answer 31

Arteries can develop weak spots which stretch and may rupture

Question 32

Connects the veins to capillaries

Answer 32

Venules

Question 33

The closer to the heart, the higher the

Answer 33

Blood pressure

Question 34

On an ekg what letters represent the ventricles contracting

Answer 34

Q R S

Question 35

On an EKG what letters represent the atria contracting? | Ventricles repolarizing?

Answer 35

P | T

Question 36

Veins have thin ____ and thick _____

Answer 36

Thin walls | Thick diameter

Question 37

Damaged valves in veins causes

Answer 37

Varicose veins (pooling of blood)

Question 38

What is stocking up in horses

Answer 38

Inactivity causes blood to pool in legs, legs look puffy

Question 39

Artery that goes to the liver

Answer 39

Hepatic

Question 40

Vein that drains blood from the intestinal tract and takes it to the liver

Answer 40

Portal vein

Question 41

Artery that supplies blood to the intestines

Answer 41

Mesenteric

Question 42

Artery that takes blood up the neck to the head

Answer 42

Carotid

Question 43

Vein that drains blood from the head

Answer 43

Jugular

Question 44

Vein that supplies blood to front leg

Answer 44

Brachial

Question 45

___ pints = 1 quart ___ Quarts = 1 gallon ___ pints = gallon

Answer 45

2 pints= 1 Quart 4 quarts= 1 gallon 8 pints = gallon

Question 46

How much of an animals body weight is blood

Answer 46

8-10% body weight

Question 47

How many pounds in a pint

Answer 47

1 pound

Question 48

Blood pressure is what/ what

Answer 48

After you’ve blown up the cuff until sound is no longer heard, slowly let air out First sound heard/ sound disappears again

Question 49

Ways to determine approximate bp without a sphygmomanometer

Answer 49

Pulse strength/ quality, mm color, CRT