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