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A n' P > Circulatory 2 > Flashcards

Circulatory 2 Flashcards

1
Q

Pacemaker called are in the ___ node of the _____ ______

A

SA node of the right atrium

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2
Q

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

A

At the atrio-ventricular junction

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3
Q

After the impulse reaches the AV node is goes where

A

The left and right branches of the Bundle of His

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4
Q

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

A

Purkinje fibers

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5
Q

The ventricles contract when the electrical impulse makes it to the

A

Purkinje fibers

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6
Q

The impulse is slowest where in the heart

Why

A

The bundle of his

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

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7
Q

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

A

Negative inside

Positive outside

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8
Q

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

A

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

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9
Q

Repolarization of cell

A

Sodium potassium pump kicks back on to recharge things

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10
Q

The pause between heart beats happens because of

A

repolarization of cells

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11
Q

Depolarization occurs during ____

Repolarization occurs during ____

A

Systole

Diastole

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12
Q

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

A

ECG/ EKG

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13
Q

What ECG/EKG stands for

A

Electro c(k)ardio gram

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14
Q

Blocks that’s may prevent normal electrical conduction

A

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

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15
Q

Example of electrolyte imbalance that blocks normal electrical conduction in heart

A

Milk fever in cattle

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16
Q

Rapid heart rhythm

A

Ventricular fibrillation

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17
Q

Blood pressure is measured with a

A

Sphygmomanometer

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18
Q 
Heart rate average for 
Elephants 
Horses 
Cows 
Dog/cat
Mouse
A 
Elephants: 20bpm 
Horse: 40bpm 
Cow: 70 bpm
Dog/cat:100-150bpm 
Mouse: 300 bpm
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19
Q

What transports hormones

A

Blood

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20
Q

Blood helps balance our

A

Temperature, water/fluid, acid/base

21
Q

System of vessels carrying blood throughout body

A

Vascular system

22
Q

Carry blood away from heart

Carry blood to heart

A

Away: arteries
To: veins

23
Q

Arteries have thick _____ and a small ______

A

Walls

Small lumen

24
Q

Artery walls are made of

A

Elastic tissue and smooth muscle

25
Q

Normal blood pressure for cats and dogs

A

120/80

26
Q

Largest artery

A

Aorta

27
Q

List from biggest to smallest lumen size

Arteries, capillaries, aorta, arterioles

A

Aorta, arteries, arterioles, capillaries

28
Q

RBCs move single file through these at the tissue level

A

Capillaries

29
Q

Responsible for nourishing tissues

A

Capillaries

30
Q

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

A

Arteries, capillaries

31
Q

What an aneurysm is

A

Arteries can develop weak spots which stretch and may rupture

32
Q

Connects the veins to capillaries

A

Venules

33
Q

The closer to the heart, the higher the

A

Blood pressure

34
Q

On an ekg what letters represent the ventricles contracting

A

Q R S

35
Q

On an EKG what letters represent the atria contracting?

Ventricles repolarizing?

A

P

T

36
Q

Veins have thin ____ and thick _____

A

Thin walls

Thick diameter

37
Q

Damaged valves in veins causes

A

Varicose veins (pooling of blood)

38
Q

What is stocking up in horses

A

Inactivity causes blood to pool in legs, legs look puffy

39
Q

Artery that goes to the liver

A

Hepatic

40
Q

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

A

Portal vein

41
Q

Artery that supplies blood to the intestines

A

Mesenteric

42
Q

Artery that takes blood up the neck to the head

A

Carotid

43
Q

Vein that drains blood from the head

A

Jugular

44
Q

Vein that supplies blood to front leg

A

Brachial

45
Q

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

A

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

46
Q

How much of an animals body weight is blood

A

8-10% body weight

47
Q

How many pounds in a pint

A

1 pound

48
Q

Blood pressure is what/ what

A

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

49
Q

Ways to determine approximate bp without a sphygmomanometer

A

Pulse strength/ quality, mm color, CRT

A n' P (24 decks)

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