Heart

Question 1

The right ventricle pumps blood into ____________

Answer 1

The pulmonary truck

Question 2

The left ventricle eject blood into _______

Answer 2

The aorta

Question 3

What returns blood from regions above the diaphragm?

Answer 3

superior vena cava

Question 4

What returns blood from the body areas below the diaphragm?

Answer 4

inferior vena cava

Question 5

Heart receives oxygen-poor blood from what side of the heart?

Answer 5

right side

Question 6

Heart receives oxygen-rich blood from what side of the heart?

Answer 6

left side

Question 7

The ______ _______ recieves blood returning from the systemic circuit?

Answer 7

right atrium

Question 8

The ______ _______ pumps blood into the pulmonary circuit.

Answer 8

right ventricle

Question 9

The ______ _______ recieves blood pumps from the pulmonary circuit.

Answer 9

right ventricle

Question 10

The ______ _______ pumps blood into the systemic circuit.

Answer 10

left ventricle

Question 11

The ______ _______ recieves blood returning from the pulmonary circuit.

Answer 11

left artium

Question 12

What prevents the backflow of blood into the atria?

Answer 12

atrioventricular valves [ mitral valve, tricuspid valve ]

Question 13

Blood flow from superior vena cava and inferior cava into ________.

Answer 13

Right atrium

Question 14

Through tricupsid valves the blood flow into _____.

Answer 14

Right ventricle

Question 15

Through plumonary semilunar valve, the bood flow into ______.

Answer 15

Pulmonary trunk

Question 16

Through the pulmonary arteries, blood flows to the _______ and picks up ___.

Answer 16

Lungs, O2

Question 17

Aftering picking up oxygenated blood, the blood flow into _________.

Answer 17

Pulmonary veins

Question 18

The pulmonary veins direct blood into the _____.

Answer 18

left atrium

Question 19

Through the mitral valve, blood goes into the ________.

Answer 19

left ventricle

Question 20

Through aortic semilunar valves, the blood goes into the ______.

Answer 20

Aorta

Question 21

The aorta delivers blood to the _______.

Answer 21

Systemic circuit.

Question 22

What arteries makes the base of the aorta? [and encircle the heart in the coronary sulcus]

Answer 22

The left and right coronary arteries

Question 23

What arteries makes the base of the aorta? [and encircle the heart in the coronary sulcus]

Answer 23

The left and right coronary arteries

Question 24

What is the function of anterior interventricular artery?

Answer 24

It is to supply blood to the interventricular septum and anterior walls of both ventricles

Question 25

What is the function of anterior interventricular artery?

Answer 25

It is to supply blood to the interventricular septum and anterior walls of both ventricles

Question 26

what is the function of circumflex artery?

Answer 26

It is to supply blood to the left atrium and the posterior walls of the left ventricle.

Question 27

What is the function of right marginal artery?

Answer 27

It is to serve the mycocardium of the lateral side of the heart.

Question 28

What is the function of right marginal artery?

Answer 28

It is to serve the mycocardium of the lateral side of the heart.

Question 29

What is the function of posterior interventricular artery?

Answer 29

It is supply the posterior ventricular walls and it runs to the heart apex.

Question 30

The conronary arteries recieve blood from the ______.

Answer 30

Aorta.

Question 31

The right atrium receives blood from which of the following structures?

Answer 31

vena cava and coronary sinus

Question 32

The right atrium receives blood from which of the following structures?

Answer 32

vena cava and coronary sinus

Question 33

During systemic circulation, blood leaves the __________.

Answer 33

Lungs ad into the left artrium

Question 34

During pulmonary circulation, blood leaves the __________.

Answer 34

right ventricle and moves to the lungs

Question 35

The cells of the myocardium behave as a single, coordinated unit called a __________.

Answer 35

functional syncytium [Because gap junctions electrically couple cardiac cells, the myocardium behaves as a single coordinated unit, orfunctional syncytium]

Question 36

The ability of some cardiac muscle cells to initiate their own depolarization and cause depolarization of the rest of the heart is called __________.

Answer 36

automaticity [Certain noncontractile cardiac muscle cells cells exhibit automaticity and autorhythmicity and can independently initiate action potentials. Such cells have an unstable resting potential called a pacemaker potential that gradually depolarizes, drifting toward threshold for firing. These cells compose the intrinsic conduction system of the heart.]

Question 37

The volume of blood pumped by one ventricle each heartbeat

Answer 37

stroke volume

Question 38

The volume of blood pumped by each ventricle in one minute

Answer 38

cardiac output

Question 39

The absolute refractory period refers to the time during which __________.

Answer 39

the muscle cell is not in a position to respond to a stimulus of any strength

Question 40

HR

Answer 40

The frequency of heart beats

Question 41

Preload

Answer 41

The degree to which cardiac muscle cells are stretched just before they contract

Question 42

ESV

Answer 42

Amount of blood in the ventricle at the end of contraction

Question 43

A doctor puts his stethoscope on a patient’s chest over the location of the heart and hears a swishing sound. Which of the following conditions is the best diagnosis for the patient’s condition?

Answer 43

incompetent cardiac valve [murmurs indicate valve problems. Aninsufficientorincompetentvalve fails to close completely. There is a swishing sound as blood backflows or regurgitates through the partially open valveafterthe valve has (supposedly) closed. Astenoticvalve fails to open completely and its narrow opening restricts blood flowthroughthe valve. In a stenotic aortic valve, for instance, a high-pitched sound or click can be detected when the valve should be wide open during ventricular contraction, but is not.]