circulatory

Question 1

3 layers of heart

Answer 1

1. epicardium
2. myocardium
3. endocardium

Question 2

septum

Answer 2

seperates chambers of the heart

Question 3

superior atria

Answer 3

low pressure, receives blood

Question 4

inferior ventricles

Answer 4

high pressure area, removes blood

Question 5

pulmonary semilunar valve

Answer 5

between right ventricle and pulmonary artery, sends blood from heart to lungs

Question 6

tricuspid valve

Answer 6

between right atrium and right ventricle

Question 7

mitral valve

Answer 7

bicuspid valve between left atrium and left ventricle

Question 8

aortic semilunar valve

Answer 8

between left ventricle and aorta

Question 9

arteries

Answer 9

carry blood away from heart

Question 10

veins

Answer 10

carry blood to the heart

Question 11

systole

Answer 11

high pressure caused by ventricular contraction

Question 12

diastole

Answer 12

pressure in arteries when ventricles are relaxed

Question 13

endomysium

Answer 13

loose matrix of connective tissue that supplies heart cells with oxygen

Question 14

pacemaker cells

Answer 14

self depolarizing, keep heart beating at same rhythm and coordination

Question 15

SA node

Answer 15

natural pacemaker near right atrium

Question 16

atrioventricular bundle (of His)

Answer 16

path electricle impulse takes to the bottom of heart

Question 17

purkinje fibers

Answer 17

trigger depolarization and cause ventricles to contract

Question 18

fibrillation

Answer 18

uncoordination of heart

Question 19

arterioles

Answer 19

mini arteries that branch into caplillaries

Question 20

venules

Answer 20

smallest vein component that sucks blood from capillaries

Question 21

lumen

Answer 21

open space in vessels that hold the blood

Question 22

3 layers of blood vessel

Answer 22

1. tunica intima-surrounds lumen
2. tunica media- contract and expand
3. tunica externa- reinforces

Question 23

venous valves

Answer 23

keep blood from back flowing

Question 24

cardiac output

Answer 24

stroke volumn X heart rate

Question 25

baroreceptors

Answer 25

neuroreceptors found in carotid arteries, aorta, and other large arteries in the neck

Question 26

albumin

Answer 26

protein made by liver that maintains osmotic pressure

Question 27

antigens

Answer 27

glycoprotein markers in cell walls

Question 28

A blood type

Answer 28

A antigens

Question 29

universal recipient

Answer 29

type AB

Question 30

universal donor

Answer 30

type O

Question 31

Rh positive

Answer 31

can accept + or - blood

Question 32

Rh negative

Answer 32

only negative blood