Circulatory System Review Flashcards Preview

Honors Anatomy & Physiology > Circulatory System Review > Flashcards

Flashcards in Circulatory System Review Deck (41)
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1
Q

the vessels carrying blood to & from the lungs are called the ____ loop of the circulatory system

A

pulmonary

2
Q

the vessels carrying blood to and from tissues of the body (other than the lungs) are called the ____ loops of the circulatory system

A

systemic

3
Q

in the capillaries of the lungs, the blood is exposed to ____

A

oxygen

4
Q

usually blood draining from capillaries passes through (arteries/veins) directly back to the (heart/lung)

A

veins, heart

5
Q

the chambers of the heart that receive blood from the veins are the right and left ____

A

atria

6
Q

in the systemic loop, blood drains back to the heart from the (systemic veins/pulmonary veins) into the (right/left) atrium

A

systemic, right

7
Q

in the pulmonary loop, blood drains back to the heart from the (systemic veins/pulmonary veins) into the (right/left) atrium

A

pulmonary, left

8
Q

blood passes from the right atrium through the ____ valve in to the ____ ventricle

A

tricuspid, right

9
Q

blood passes from the left atrium through the ____ valve in to the ____ ventricle

A

bicuspid, left

10
Q

the right ventricle pumps blood into the ___ loop

A

pulmonary

11
Q

the left ventricle pumps blood into the ____ loop

A

systemic

12
Q

the semilunar valves are located at the beginning of the (aorta/pulmonary trunk) and at the end of the (aorta/pulmonary trunk).

A

pulmonary trunk, aorta

13
Q

the valve btwn the right atrium and right ventricle is the ____

A

tricuspid

14
Q

the valve btwn the left atrium and left ventricle is the ___

A

bicuspid

15
Q

the atrioventricular valves have ______ at their free edges

A

chordae tendineae

16
Q

the myocardium is made up of ___ musce

A

cardiac

17
Q

the chamber of the heart w/ the thickest myocardium is the ____ ventricle

A

left

18
Q

the outer surface of the heart is covered w/ the (parietal/visceral) pericardium.

A

parietal

19
Q

the sinoatrial node is called the pacemaker bc it is normally the first part of the heart to ____

A

depolarize

20
Q

the depolarization of the 5-A node causes the contraction of the (atria/ventricle)

A

atria

21
Q

the AV node is connected to the (AV bundle/Purkinjie Fibers)

A

AV bundle

22
Q

the AV bundle leads the depolarization into the ____ of the heart along the purkinjie fibers

A

ventricles

23
Q

the 1st part of the ventricles to depolarize is the (apex/ventricular septum), then the (apex/ventricular septum)

A

Ventricular septum, apex

24
Q

then the depolarization continues back toward the (papillary muscles/ purkinjie fibers)

A

papillary muscles

25
Q

this means the ventricles contract from the (apex up, valves down)

A

apex up

26
Q

during diastole the myocardium is relaxed. This allows blood to flow into the heart from the (systemic and pulmonary veins/arteries). the semilunar valves are ___. this means the pressure in the aorta and pulmonary arteries must be (greater/less) than that of the ventricles.

A

systemic and pulmonary veins
closed
greater

27
Q

when the atria contract, more blood is forced into the ___

A

ventricles

28
Q

when the ventricular myocardium begins to contract, the pressure in the ventricles (increases/decreases)

A

increases

29
Q

the 1st effect of the rise in pressure is to cause the (AV/cuspid) valves to (close/open)

A

AV, close

30
Q

the semilunar valves do not open until the pressure in the ventricles exceeds the pressure in the (arteries/ventricles)

A

arteries

31
Q

the semilunar valves close when the pressure in the arteries becomes (greater/less) than that of the ventricles

A

greater

32
Q

if the arterial blood pressure is elevated, it becomes (easier/harder) for the ventricles to eject blood

A

harder

33
Q

The layer (tunic)present in all vessels shown is the ___.

A

tunica interna

34
Q

the tunica interna in the capillary is made of ____ tissue

A

epithelium

35
Q

would epithelial tissue allow interchange of materials btwn the blood and the surrounding interstitial fluid?

A

yes

36
Q

if the precapillary sphincter in the arteriole constricts, the blood flow into the capillary will (increase/decrease)

A

decrease

37
Q

the tunica media in the aorta contains much ___ tissue

A

connective

38
Q

the tunica media of the muscular artery is primarily composed of ___ muscle tissue

A

smooth

39
Q

when the contraction of smooth muscle increase, the vessel’s lumen (decreases/increases)

A

decrease

40
Q

if the contraction in the smooth muscle in arteries and arterioles increases, then arteriol blood pressure should (decrease/increase)

A

increase

41
Q

valves in veins prevent blood from flowing back toward the ___

A

capillaries