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Equine Science 2 > Cardiovascular system > Flashcards

Cardiovascular system Flashcards

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1
Q

What are the four compartments of the heart

A
  1. Right ventricle
  2. Right Atrium
  3. Left ventricle
  4. Left atrium
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2
Q

What are the sounds of the heart

A

lub dub

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3
Q

The _____ receives blood while the _____ ejects blood

A

atrium, ventricle

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4
Q

The first sound, lub, is _____

A

systole

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5
Q

The second sound, dub, is ______

A

diastole

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6
Q

The ______ system consists of the heart and many vessels

A

cardiovascular

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7
Q

the cardiovascular system consists of _____

A

the heart and many vessels

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8
Q

_____ circulation is a subdivision of the cardiovascular system and consists of all vessels with all organs

A

systemic

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9
Q

_____ circulation consists of vessels in the lungs where exchange of gases takes place

A

pulmonary

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10
Q

the heart serves as a _____ and is composed of ____ chambers

A

pump; 4

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11
Q

heart size is related to ______ and beats at an average of ____ beats per minute at rest

A

body size; 35

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12
Q

what range does the heart beat per minute at rest

A

28-44

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13
Q

one complete cycle of cardiac contraction and relaxation (heartbeat) is ______

A

the cardiac cycle

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14
Q

______ - relaxation of a chamber prior to and during filling

A

diastole

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15
Q

______ - contraction of a chamber that drives blood out of a chamber

A

systole

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16
Q

there are _____ distinct sounds during each cardiac cycle, they are _____

A

2; lub dub

17
Q

T/F: the sounds of the heart are separated by a short interval followed by a longer pause, the pause increases with slower heart rate

A

true

18
Q

What are factors affecting heart rate

A 
exercise
physical condition
environmental temperature
excitement
pathological conditions
age
19
Q

What is the SA node? where is it? and what does it do

A

sinoatrial node; in the right atrium; coordinates the rhythmic contractions

20
Q

______ are impulse conducting fibers

A

purkinje fibers

21
Q

what is the AV node

A

atrioventricular node

22
Q

______ from the SA node connect with the AV node

A

fibers

23
Q

_____ carry blood away from the heart while _____ carry blood back toward the heart

A

arteries; veins

24
Q

Secretariat had an abnormally large heart due to _____

A

the x factor

25
Q

______ is the quantity of blood ejected by the heart during each contraction, approximately __ liter

A

stroke volume; 1

26
Q

_____ is the quantity of blood pumped per minute

A

cardiac output

Equine Science 2 (13 decks)

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