cardiovascular exam #1

Question 1

the left anterior descending coronary artery provides oxygenated blood to all of the following except the:

anterior interventricular septum
inferior interventricular septum
anterior descending, circumflex
cardiac apex

Answer 1

inferior interventricular septum

Question 2

the circumflex artery provides oxygenated blood to all of the following except the:
anterior wall of LV
anterolateral wall of LV
LA
lateral wall of LV

Answer 2

anterior wall of LV

Question 3

the coronary sinus receives deoxygenated blood from all of the following veins except the:
great cardiac
middle cardiac
small cardiac
posterior cardiac

Answer 3

posterior cardiac

Question 4

pulmonary venous flow normal occurs predominantly during

Answer 4

ventricular systole

Question 5

true or false the left ventricle depolarizes slightly before the right ventricle

Answer 5

true

Question 6

The SA node and AV node receive oxygenated blood from which coronary artery

Answer 6

right

Question 7

adipose tissue around the heart is located between the

Answer 7

epicardium and myocardium

Question 8

the sac that surrounds the heart is the

Answer 8

parietal pericardium

Question 9

the thin membrane that lines the fibrous pericardium is called the.

Answer 9

parietal serous

Question 10

the pericardial space is located between the

Answer 10

parietal serous pericardium and epicardium

Question 11

the posterior free space created by the pericardial-pulmonary vein interface is the

Answer 11

oblique sinus

Question 12

the free space created at the base of the heart by the pericardial-great vessel interface is the

Answer 12

transverse sinus

Question 13

during ventricular systole, the heart moves how

Answer 13

moves downward, twists counterclockwise, and moves anteriorly

Question 14

mens hearts on average weigh more than women’s hearts

Answer 14

true

Question 15

the widest part of the heart is the

Answer 15

base

Question 16

the left margin of the heart is called the ______ margin

Answer 16

oblique

Question 17

where the diaphragm meets the right ventricle is. called the _________ margin

Answer 17

acute margin

Question 18

externally where all four cardiac chambers meet posteriorly. is called the cardiac

Answer 18

crux

Question 19

internally where. the interatrial septum meets the interventricular septum is called the cardiac

Answer 19

crux

Question 20

the heart lies beneath the.

Answer 20

sternum

Question 21

true or false a persistent superior vena cava is a result of the left horn of the sinus venous. remaining

Answer 21

true

Question 22

which coronary artery supplies oxygenated blood to the sinoatrial node and the av node?

Answer 22

right coronary artery

Question 23

delivers the electrical impulse from the bundle branches to the ventricular walls

Answer 23

purkinje fibers

Question 24

according to the electrocardiogram, actual ventricular contraction coincides with the

Answer 24

ST segment

Question 25

The Frank Starling law may also be. referred to as the

Answer 25

length-tension relationship

Question 26

The word length in length-tension refers to cardiac

Answer 26

cell stretch

Question 27

the word tension in length-tension relationship refers to cardiac

Answer 27

contraction

Question 28

the pulmonary artery wedge pressure reflects

Answer 28

left atrial pressure

Question 29

the central venous. pressure reflects the pressure in the

Answer 29

right atrium

Question 30

what effect will an increase in preload have on the force of ventricular contraction

Answer 30

increase

Question 31

aortic regurgitation, mitral regurgitation, and patent ductus arteriosus will all increase preload of the left heart... this will not

Answer 31

aortic stenosis

Question 32

significant mitral regurg initially will have which effect on the left ventricular performance?

Answer 32

enhance

Question 33

refers to the load production that the myocardial fibers must produce during ventricular systole

Answer 33

force

Question 34

refers to the rate of myocardial fiber shortening during ventricular systole

Answer 34

velocity

Question 35

the force the myocardial fibers must produce is inversely related to the rate of fiber shortening, true or false

Answer 35

true

Question 36

the greater the force the myocardial fiber must produce, the slower the rate of fiber shortening

Answer 36

true

Question 37

means the resistance or impedance the ventricle faces as it contracts

Answer 37

afterload

Question 38

an increase in after load will mean an increase in myocardial load production and a decrease in the rate of fiber shortening and cardiac performance true or false

Answer 38

true

Question 39

a reduction in after load mend a reduction in force and an increase in the rate of fiber shortening and cardiac performance

Answer 39

true

Question 40

an increase in afterload is associated with a decrease in cardiac performance

Answer 40

true

Question 41

a reduction in after load generally will improve cardiac performance

Answer 41

true

Question 42

the pulmonary artery and aorta are considered after load vessels

Answer 42

true

Question 43

with an increase in force, the velocity of fiber shortening will

Answer 43

decrease

Question 44

with a decrease in force, the velocity of fiber shortening will

Answer 44

increase

Question 45

what effect will an increase in after load have on myocardial force?

Answer 45

increase

Question 46

what effect will an increase in after load have on myocardial fiber shortening velocity?

Answer 46

decrease

Question 47

what effect will an increase of after load have on cardiac. performance?

Answer 47

decrease

Question 48

converning valvular aortic stenosis, is this true or false: increase in ventricular force, decrease in velocity and an increase in afterload

Answer 48

true

Question 49

the systolic contraction following a premature ventricular contraction with a compensatory pause will be

Answer 49

increased

Question 50

the phenomenon where there is an increase in systolic contraction following a premature ventricular contraction with a compensatory pause is called

Answer 50

interval-strength

Question 51

according to the interval strength relationship, the peak velocity and peak pressure gradient post premature ventricular contraction with a compensatory pause will be

Answer 51

increased

Question 52

according to the interval strength relationship, the strength of ventricular contraction in a patient with sinus bradycardia will be

Answer 52

increased

Question 53

as compared to the mitral valve, the tricuspid valve normally opens

Answer 53

before

Question 54

as compared to the mitral valve, the tricuspid valve normally closes

Answer 54

after

Question 55

standing to supine will reduce

Answer 55

venous return

Question 56

squatting _________ the amount of blood in the heart

Answer 56

increases