cardiovascular system

Question 1

upperchamber of heart

Answer 1

atrium

Question 2

prevents blood movement from right ventricle to right atrium

Answer 2

tricuspid valve

Question 2

structure from which chordea tendineae originates

Answer 2

pappillary muscle

Question 3

double layered membrane

Answer 3

pericardium

Question 4

prevents blood movement from left ventricle to left atrium

Answer 4

bicuspid valve

Question 5

gives rise to pulmanary arteries

Answer 5

pulmanary trunk

Question 6

drains blood from myocardium into right atrium

Answer 6

coronary sinus

Question 7

inner lining of heart chamber

Answer 7

endocardium

Question 8

layer composed largely of cardiac muscle muscle tissue

Answer 8

myocardium

Question 9

potential space containing serous fliud

Answer 9

pericardial cavity

Question 10

drain blood from myocardial cappilaries

Answer 10

cardiac viens

Question 11

supplies blood to heart muscles

Answer 11

coronary artery (widow maker

Question 12

distrubutes blood to body parts

Answer 12

aorta

Question 13

phase of contraction pushing blood

Answer 13

systole

Question 14

phase of relaxation filling with blood

Answer 14

diastole

Question 15

ventricles are already 70% full of blood the contraction of the atria forces the other % into ventricles

Answer 15

atrial systole

Question 16

begins as atrial systole ends, av valves swing shut as the pressure builds. blood pushes open the the sl valves and blood flows into the aorta and the pulmonary arterie

Answer 16

ventricular systole

Question 17

ventricular pressure declines, sl valve blood pressure continues to decline and av valves open and blood flows into ventricles both atria and ventricles and in diastole

Answer 17

ventricular diastole

Question 18

how are heart sounds made

Answer 18

sound of blood hitting the valves

Question 19

LUB First sound loudest and longest how is it cuased

Answer 19

during ventricular systole by pressure of the blood hitting against the closing av valves

Question 20

dub second sound caused by

Answer 20

the blood hiting the closing semilunar valves

Question 21

valves that dont close proplerly cuases a

Answer 21

heart murmer

Question 22

Cells 99% of cardiac muscle

Answer 22

contractile cells

Question 23

cells that starts electricle systems( specialized 1%

Answer 23

nodal cells

Question 24

cells that conduct the electrical signal through the heart, and in a pattern, the signal ends at the contractile cells.

Answer 24

conducting cells

Question 25

The conducting cycle starts in

Answer 25

SA node, AV node, AV bundle, bundle branches, perkinge fibers

Question 26

Where is the heart located

Answer 26

In the middle, sitting at an angle

Question 27

How many chambers does the heart consist of

Answer 27

4 right atrium right ventricle left atrium left ventricle

Question 28

The amount of blood ejected by the ventricles in one beat

Answer 28

stroke volume

Question 29

The amount of blood pumped by the ventricles in a minute

Answer 29

cardiac output

Question 30

Starling's law of the heart

Answer 30

The more blood that enters the heart, the greater the contraction; therefore, the largest SV and cardiac output

Question 31

The force that is exerted by blood against the insides of blood vessels

Answer 31

blood pressure

Question 32

two circuts of the cardiovascular system

Answer 32

pulmonary and systematic

Question 33

the heart is a cone shaped, mascular pump located within the

Answer 33

mediastinum

Question 34

the apex of the heart is located

Answer 34

in the 5th intercostal space

Question 35

the visceral pericardium corresponds with

Answer 35

epicardium

Question 36

Perkinje fibers are located in the

Answer 36

endocardium

Question 37

the upper chambers of the heart are the

Answer 37

atria

Question 38

the lower chambers of the heart is the

Answer 38

ventricles

Question 39

the vessals that empty into the upper right chamber of the heart are the

Answer 39

vena cave and coronary sinuses

Question 40

the valve between the chambers of the right side of the heart is the

Answer 40

tricuspid valve

Question 41

the structures that prevents the mitral and tricuspid valve from swinging into the atria during the ventricular contraction are the

Answer 41

chordea tendinae papillary muscle

Question 42

the valve that seperates the left ventricle from the aorta is the

Answer 42

aortic semilunar valve

Question 43

a click like heart sound over the apex at the end of the ventricular contraction indicates

Answer 43

mitral valves prollapse

Question 44

trace a drop of blood through the heart beginning at the right atrium

Answer 44

atrium tricuspid valve right ventricle pulmonary arteries lungs pulmonary viens left atrium biscupid valve left ventricle aorta

Question 45

blood is supplied to the heart by the

Answer 45

coronary arteries

Question 46

blood from the myocardium is returned to the right atrium via the

Answer 46

coronary sinus

Question 47

atrial contraction, while the ventricles relax, followed by the ventricular contraction while the atria relax is known as the

Answer 47

cardiac cycle

Question 48

heart sounds heard by a stethoscope are produce by

Answer 48

blood hitting the opening and closing of the heart valves

Question 49

the cells that initiate the stimulus for contraction of the heart muscle are located in

Answer 49

sinoatrial nhode

Question 50

the conduction impulse that starts in the right atrium travels to the

Answer 50

av nhode

Question 51

a recording of the electrical activity of the heart muscle is the

Answer 51

ekg

Question 52

the ekg wave that records the the atrial depolarization is the

Answer 52

p wave

Question 53

the width of the qrs complex is an indication of the time needed for an impulse to travel through the

Answer 53

ventricle

Question 54

when the heart rate is 150 beats per min the rythm is

Answer 54

tachycardia

Question 55

if an individual has a heart rate of 50 beats per min the pace maker is

Answer 55

a-v nhode

Question 56

the maximum pressure in the artery, occuring during ventricular contraction is

Answer 56

systolic pressure

Question 57

the amount of blood pushed out of the ventricle with each contraction is callled

Answer 57

stroke volume

Question 58

five factors that influence blood pressure

Answer 58

heart action blood volume resistance to flow viscosity peripheral resistance

Question 59

The friction between blood and the walls of the blood vessels is

Answer 59

resistance

Question 60

Cardiac output is calculated by multiplying

Answer 60

Stroke volume by heart rate

Question 61

Peripheral resistance is maintained by increasing or decreasing the size of

Answer 61

arterioles

Question 62

Blood flow in the venous system depends on

Answer 62

contraction of the heart Vein message by skeletal muscle contraction respiratory movements

Question 63

Vessels that carry deoxygenated blood are

Answer 63

viens pulmonary arteries vena cava renal veins

Question 64

The pulmonary veins enter the

Answer 64

left atrium