Deck 12 (CO): The Heart

Question 1

The myocardium forms the ______________________________ of the heart.

Answer 1

walls of the chambers

Question 2

The lining of the chambers of the heart is the ____________________________.

Answer 2

endocardium

Question 3

The _________________________ returns blood from the lower body to the right atrium.

Answer 3

inferior vena cava

Question 4

The heart is located in an area called the ___________________________,and is protected by the ____________________________.

Question 5

The endocardium is the _____________ of the heart,and its function is to _____________________.

Question 6

The area in which the heart is located is called the _______________________________.

Question 7

The ___________________________ return blood from the lungs to the left atrium.

Question 8

The function of the serous fluid of the pericardial membranes is to ___________________________.

Question 9

The innermost of the pericardial membranes is the ______________________ pericardium.

Question 10

The diaphragm is __________________ to the heart,and the lungs are __________________ to the heart.

Question 11

The heart is directly superior to the ________________________ and is medial to the _______________________.

Question 12

The layer of the heart wall that prevents abnormal clotting is the ______________________.

Question 13

The ________________________ returns blood from the upper body to the right atrium.

Question 14

The middle layer of the pericardial membranes is the ___________________ pericardium.

Question 15

The superior vena cava returns blood from the _______________________ to the ______________________ of the heart.

Question 16

The outermost of the pericardial membranes is the ________________________ pericardium.

Question 17

The layer of the heart wall that pumps blood is the ____________________________.

Question 18

The walls of the chambers of the heart are formed by the ___________________________.

Question 19

The heart is ____________________ to the diaphragm and _______________ to the lungs.

Question 20

The visceral pericardium is also called the ___________________________.

Question 21

The right and left AV valves close when the ______________________ contract.

Question 22

The tricuspid valve prevents backflow of blood from the ________________________ to the ___________________________.

Question 23

The general function of all the valves of the heart is to __________________________________________________.

Question 24

The ____________________ valve prevents backflow of blood from the left ventricle to the left atrium.

Question 25

The __________________ emerges from the left ventricle and takes blood to the ________________.

Question 26

The ___________________ valve prevents backflow of blood from the right ventricle to the right atrium.

Question 27

The left ventricle pumps blood into the ___________________,and the right ventricle pumps blood into the ___________________________.

Question 28

The pulmonary veins return blood from the ______________________ to the _________________________ of the heart.

Question 29

The function of ANP is to increase excretion of _____________ and _____________ by the __________________________.

Question 30

Within the heart,backflow of blood is prevented by the ______________________.

Question 31

The aorta takes blood from the ______________ ventricle to the __________________.

Question 32

The inferior vena cava returns blood from the ______________________ to the _________________________ of the heart.

Question 33

The pulmonary semilunar valve prevents backflow of blood from the __________________ to the _____________________________.

Question 34

The right and left AV valves prevent backflow of blood from the _________________ to the _____________________ when the ____________________ contract.

Question 35

The mitral valve prevents backflow of blood from the _______________ to the ___________________.

Question 36

The ___________________________ emerges from the right ventricle and takes blood to the ___________________________.

Question 37

The ventricle that has thicker walls is the ________________,because it must pump blood throughout the ______________________.

Question 38

The atria of the heart produce the hormone ___________________ when blood pressure _________________________.

Question 39

The aortic semilunar valve prevents backflow of blood from the ___________________ to the ________________________.

Question 40

The pulmonary artery takes blood from the ___________ ventricle to the ______________.

Question 41

The term systole means ________________________ of the heart chambers.

Question 42

The aortic and pulmonary semilunar valves close when the ____________________ relax.

Question 43

The sequence of events in one heartbeat is called the ___________________________.

Question 44

In the cardiac cycle,the most important pumping of blood occurs from the ________________________ to the ________________________.

Question 45

The coronary sinus is the union of the __________________________,and it returns blood to the ______________________.

Question 46

For the myocardium,the most important substance in the blood is ____________________.

Question 47

In the cardiac cycle,all blood from the ventricles to the arteries must be _________________.

Question 48

The heart is a double pump: the left side of the heart receives blood from the ______________ and pumps it to the ________________.

Question 49

During the cardiac cycle,when the ventricles are in systole,the atria are in _______________________.

Question 50

The first branches of the ascending aorta are the ______________________ arteries,which take blood to the ____________________.

Question 51

In the cardiac cycle,some passive blood flow occurs from the _________________ to the _______________________.

Question 52

The coronary arteries are branches of the _____________________ and supply blood to the ______________________.

Question 53

The term for contraction of the chambers of the heart is ___________________________.

Question 54

The term for relaxation of the chambers of the heart is ____________________________.

Question 55

The heart is a double pump: The right side of the heart receives blood from the _____________ and pumps it to the ______________.

Question 56

The aortic and pulmonary semilunar valves prevent backflow of blood from the ___________________ to the ____________________ when the ____________________ relax.

Question 57

The cardiac cycle is the sequence of events in _____________________________.

Question 58

During the cardiac cycle,when the atria are in systole,the ventricles are in ________________________.

Question 59

The term diastole means ________________________ of the heart chambers.

Question 60

During the cardiac cycle,the ______________________ contract first,followed by contraction of the _______________________.

Question 61

A basketball player has a resting cardiac output of 5400 mL,a stroke volume of 90 mL,and a resting pulse of ________________________.

Question 62

The part of the heart that initiates each beat is the _________________________.

Question 63

Stroke volume is the amount of blood pumped by a ventricle in ______________________.

Question 64

The parts of the cardiac conduction pathway in the ventricles,in order,are the ____________________,________________,and ___________________.

Question 65

During exercise,if cardiac output is 15,000 mL and stroke volume is 120 mL,then pulse is ___________________.

Question 66

If stroke volume is 80 mL and pulse is 70 bpm,then cardiac output is __________________.

Question 67

The electrical activity of the heart may be seen in a tracing called a(n)__________________.

Question 68

The part of the heart that initiates each beat is the ________________________,which is located in the ________________________.

Question 69

The normal range of resting heart rate for a healthy adult is __________ to _________ bpm.

Question 70

The amount of blood pumped by a ventricle in one beat is called ______________________.

Question 71

Cardiac output is the amount of blood pumped by the left ventricle in ___________________.

Question 72

If cardiac output is 6000 mL and stroke volume is 75 mL,then pulse is _________________.

Question 73

A certain level of cardiac output is needed at all times to maintain a normal ____________________ and to deliver sufficient ____________________ to all tissues.

Question 74

The difference between the resting cardiac output and the maximum cardiac output is called the ___________________________.

Question 75

The amount of blood pumped by the left ventricle in one minute is called _________________________.

Question 76

The electrical impulses for the heartbeat pass from the _____________________ of the atria to the _______________________ in the ventricles.

Question 77

During exercise,if pulse is 140 and the stroke volume is 110 mL,the cardiac output is ________________.

Question 78

The part of the heart muscle that usually depolarizes first in a heartbeat is the ______________________.

Question 79

If cardiac output is 4900 mL and pulse is 70 bpm,then stroke volume is _________________.

Question 80

To calculate cardiac output,multiply _______________ times ___________________.