HEART

Question 1

right side of the heart pumps blood

Answer 1

pulmonary circulation

Question 2

left side of the heart pumps blood

Answer 2

systemic circulation

Question 3

a double layer sac

Answer 3

pericardium

Question 4

a tough connective tissue in outer layer

a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium

Answer 4

a. fibrous pericardium

Question 5

part of serous that lines the fibrous pericardium

a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium

Answer 5

c. parietal pericardium

Question 6

part that covering the heart surface

a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium

Answer 6

d. visceral pericardium

Question 7

inner layer; consists of flat epithelial cells with a thin layer of connective tissue

a. fibrous pericardium
b. serous pericardium
c. parietal pericardium
d. visceral pericardium

Answer 7

b. serous pericardium

Question 8

produce by serous pericardium; help reduce friction as the heart moves

Answer 8

pericardial fluid

Question 9

drain blood from most of the body

a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum

Answer 9

a. superior and inferior vena cava

Question 10

drains blood from the lungs

a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum

Answer 10

c. left atrium

Question 11

drains blood from heart muscle

a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum

Answer 11

b. coronary sinus

Question 12

separates the two atria

a. superior and inferior vena cava
b. coronary sinus
c. left atrium
d. interatrial septum

Answer 12

d. interatrial septum

Question 13

functions primarily as reservoir

Answer 13

atria

Question 14

major pumping chambers

Answer 14

ventricles

Question 15

separating the atria from ventricle

Answer 15

coronary sulcus

Question 16

pumps blood into pulmonary trunk

Answer 16

right ventricle

Question 17

pumps blood into aorta

Answer 17

left ventricle

Question 18

separating the two ventricle

Answer 18

interventricular septum

Question 19

between the atria and ventricle; open when ventricle relax

a. atrioventricular valves
b. semilunar valves

Answer 19

a. atrioventricular valves

Question 20

between the ventricle and artery; open when ventricle contract

a. atrioventricular valves
b. semilunar valves

Answer 20

b. semilunar valve

Question 21

has 3 cusps between the right atrium and right ventricle

a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve

Answer 21

a. tricuspid valve

Question 22

right ventricle and pulmonary trunk

a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve

Answer 22

c. pulmonary SL valve

Question 23

left ventricle and aorta

a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valve

Answer 23

d. aortic SL valve

Question 24

2 cusps between the left atrium and left ventricle

a. tricuspid valve
b. bicuspid valve
c. pulmonary SL valve
d. aortic SL valves

Answer 24

b. bicuspid valve

Question 25

supply oxygenated blood to the wall of heart

Answer 25

coronary arteries

Question 26

LAYERS OF THE HEART: thin, forming the smooth outer surface a. epicardium b. myocardium c. endocardium

Answer 26

a. epicardium

Question 27

LAYERS OF THE HEART: smooth inner surface a. epicardium b. myocardium c. endocardium

Answer 27

c. endocardium

Question 28

LAYERS OF THE HEART: thick middle layer composed of cardiac muscle a. epicardium b. myocardium c. endocardium

Answer 28

b. myocardium

Question 29

Na+ and Ca+ channels open

Answer 29

depolarization phase

Question 30

K+ channel open and Ca+ channel close

Answer 30

repolarization phase

Question 31

results from depolarization of atrial myocardium; its beginning precedes atrial contraction a. P wave b. QRS complex c. T wave

Answer 31

a. P wave

Question 32

results from depolarization of ventricle; its beginning precedes ventricular contraction a. P wave b. QRS complex c. T wave

Answer 32

b. QRS complex

Question 33

results from repolarization of ventricle; its beginning precedes ventricular relaxation a. P wave b. QRS complex c. T wave

Answer 33

c. T wave

Question 34

law that influences cardiac output

Answer 34

starling's law of the heart