Circulatory System Review Flashcards Preview

Honors Anatomy & Physiology > Circulatory System Review > Flashcards

Flashcards in Circulatory System Review Deck (41):
1

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

pulmonary

2

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

systemic

3

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

oxygen

4

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

veins, heart

5

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

atria

6

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

systemic, right

7

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

pulmonary, left

8

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

tricuspid, right

9

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

bicuspid, left

10

the right ventricle pumps blood into the ___ loop

pulmonary

11

the left ventricle pumps blood into the ____ loop

systemic

12

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

pulmonary trunk, aorta

13

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

tricuspid

14

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

bicuspid

15

the atrioventricular valves have ______ at their free edges

chordae tendineae

16

the myocardium is made up of ___ musce

cardiac

17

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

left

18

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

parietal

19

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

depolarize

20

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

atria

21

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

AV bundle

22

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

ventricles

23

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

Ventricular septum, apex

24

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

papillary muscles

25

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

apex up

26

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.

systemic and pulmonary veins
closed
greater

27

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

ventricles

28

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

increases

29

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

AV, close

30

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

arteries

31

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

greater

32

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

harder

33

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

tunica interna

34

the tunica interna in the capillary is made of ____ tissue

epithelium

35

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

yes

36

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

decrease

37

the tunica media in the aorta contains much ___ tissue

connective

38

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

smooth

39

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

decrease

40

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

increase

41

valves in veins prevent blood from flowing back toward the ___

capillaries