What role do the chordae tendineae and papillary muscles play in the normal function of the AV valves?
Identify the structures in the following diagram of a sectional view of the heart.
a. ___
b. ___
c. ___
d. ___
e. ___
f. ___
g. ___
h. ___
i. ___
j. ___
k. ___
l. ___
m. ___
검증된 단계별 안내
비슷한 문제에 대한 검증된 영상 답변:
주요 개념
Anatomy of the Heart
Sectional Views and Orientation
Function and Flow of Blood Through the Heart
During diastole, a chamber of the heart:
(a) Relaxes and fills with blood
(b) Contracts and pushes blood into an adjacent chamber
(c) Experiences a sharp increase in pressure
(d) Reaches a pressure of approximately 120 mm Hg
Identify the superficial structures in the following diagram of the heart.
a. ___
b. ___
c. ___
d. ___
e. ___
f. ___
g. ___
h. ___
Cardiac output is equal to the:
(a) Difference between the end-diastolic volume and the end-systolic volume
(b) Product of heart rate and stroke volume
(c) Difference between the stroke volume at rest and the stroke volume during exercise
(d) Stroke volume less the end-systolic volume
(e) Product of heart rate and blood pressure
During the cardiac cycle, the amount of blood ejected from the left ventricle when the semilunar valve opens is the:
(a) Stroke volume (SV)
(b) End-diastolic volume (EDV)
(c) End-systolic volume (ESV)
(d) Cardiac output (CO)
The cardiac skeleton of the heart has which two of the following functions?
(a) It physically isolates the muscle fibers of the atria from those of the ventricles.
(b) It maintains the normal shape of the heart.
(c) It helps distribute the forces of cardiac contraction.
(d) It allows more rapid contraction of the ventricles.
(e) It strengthens and helps prevent overexpansion of the heart.
