Herlihy Ch 16 & 17 Exam Questions With Complete
Solutions
A Double Pump and Two Circulations Correct Answers A.The
right heart pumps blood to the lungs for oxygenation (called the
pulmonary circulation).
B.The left heart pumps blood throughout the rest of the body
(called the systemic circulation).
afterload Correct Answers Arteriolar constriction and
hypertension cause this to increase.
aortic Correct Answers The semilunar valve through which
blood exits the left ventricle
bicuspid Correct Answers The AV valve located between the
left atrium and left ventricle
bicuspid Correct Answers The AV valve that "sees"
oxygenated blood
bicuspid Correct Answers The valve that is also called the
mitral valve
bicuspid Correct Answers This valve is located in the left heart
and has chordae tendineae.
Blood Supply to the Myocardium Correct Answers A.The left
and right coronary arteries supply the myocardium with oxygen
and nutrients.
, B.The coronary veins drain the unoxygenated blood and empty
it into the coronary sinus, which empties into the right atrium.
Cardiac Conduction System Correct Answers A.The SA node
generates an electrical signal (cardiac impulse) that moves
throughout the heart in a coordinated way. The electrical signal
causes the myocardium to contract.
B.The pathway followed by the cardiac impulse is summarized
in Figure 16-10.
C.Cardiac muscle displays automaticity and rhythmicity.
D.The SA node is the pacemaker of the heart. Pacemaker cells
throughout the heart fire at different rates: normal, slow, and
slower.
E.The electrical activity of cardiac muscle is recorded as an
electrocardiogram.
Cardiac Cycle Correct Answers 1.The cardiac cycle is a
sequence of events that occurs during one heartbeat.
2.The events of the cardiac cycle include atrial and ventricular
systole (contraction) and diastole (relaxation).
cardiac output Correct Answers 5000 mL/min
cardiac output Correct Answers Amount of blood pumped by
the ventricle in 1 minute
cardiac output Correct Answers Stroke volume times heart rate
Cardiac Output (CO) Correct Answers 1.CO is the amount of
blood pumped by the ventricle in 1 minute.
2.CO is determined by heart rate (HR) and stroke volume (SV).
Solutions
A Double Pump and Two Circulations Correct Answers A.The
right heart pumps blood to the lungs for oxygenation (called the
pulmonary circulation).
B.The left heart pumps blood throughout the rest of the body
(called the systemic circulation).
afterload Correct Answers Arteriolar constriction and
hypertension cause this to increase.
aortic Correct Answers The semilunar valve through which
blood exits the left ventricle
bicuspid Correct Answers The AV valve located between the
left atrium and left ventricle
bicuspid Correct Answers The AV valve that "sees"
oxygenated blood
bicuspid Correct Answers The valve that is also called the
mitral valve
bicuspid Correct Answers This valve is located in the left heart
and has chordae tendineae.
Blood Supply to the Myocardium Correct Answers A.The left
and right coronary arteries supply the myocardium with oxygen
and nutrients.
, B.The coronary veins drain the unoxygenated blood and empty
it into the coronary sinus, which empties into the right atrium.
Cardiac Conduction System Correct Answers A.The SA node
generates an electrical signal (cardiac impulse) that moves
throughout the heart in a coordinated way. The electrical signal
causes the myocardium to contract.
B.The pathway followed by the cardiac impulse is summarized
in Figure 16-10.
C.Cardiac muscle displays automaticity and rhythmicity.
D.The SA node is the pacemaker of the heart. Pacemaker cells
throughout the heart fire at different rates: normal, slow, and
slower.
E.The electrical activity of cardiac muscle is recorded as an
electrocardiogram.
Cardiac Cycle Correct Answers 1.The cardiac cycle is a
sequence of events that occurs during one heartbeat.
2.The events of the cardiac cycle include atrial and ventricular
systole (contraction) and diastole (relaxation).
cardiac output Correct Answers 5000 mL/min
cardiac output Correct Answers Amount of blood pumped by
the ventricle in 1 minute
cardiac output Correct Answers Stroke volume times heart rate
Cardiac Output (CO) Correct Answers 1.CO is the amount of
blood pumped by the ventricle in 1 minute.
2.CO is determined by heart rate (HR) and stroke volume (SV).
