Question 1

The foramen ovale is actually an opening in the

Accepted Answer

A)  interventricular septum.
B)  interatrial septum.
C)  fossa ovalis.
D)  aorticopulmonary septum.
E)  tetralogy of Fallot.F) A) and E)
G) A) and C)

Question 2

The gap junctions of intercalated discs provide a low-resistance pathway across the membranes of adjoining cardiac muscle fibers.

Accepted Answer

A) True 
 B)False

Question 3

During ventricular diastole

Accepted Answer

A)  only the AV valves open.
B)  only the AV valves close.
C)  only the semilunar valves close.
D)  the semilunar valves close and the AV valves open.
E)  the semilunar valves open and the AV valves close.F) A) and B)
G) A) and C)

Question 4

The atria are separated from the ventricles externally by the

Accepted Answer

A)  anterior interventricular sulcus.
B)  posterior interventricular sulcus.
C)  sinoventricular sulcus.
D)  coronary sulcus.E) A) and D)
F) A) and B)

Question 5

During early ventricular systole the atria are in

Accepted Answer

A)  systole.
B)  diastole.C) A) and B)
D) undefined

Question 6

Which circuit of the cardiovascular system is responsible for sending blood to the kidneys,stomach,and pelvic regions?

Accepted Answer

A)  Pulmonary circuit
B)  Innards circuit
C)  Vagus circuit
D)  Systemic circuit
E)  Vanguard circuitF) A) and B)
G) A) and C)

Question 7

The connections shared by arteries that allow them to shunt blood from one artery to another are called _________________.

Accepted Answer

The answer of The connections shared by arteries that allow...

Question 8

The middle layer of the heart wall that is made of cardiac muscle tissue is the ________________.

Accepted Answer

The answer of The middle layer of the heart wall...

Question 9

Which are functions performed by the fibrous skeleton of the heart?
A: Separates the atria and ventricles
B: Anchors the heart valves
C: Provides electrical insulation between the atria and ventricles
D: Provides the framework for the attachment of the myocardium
E: None of these are true functions of the fibrous skeleton of the heart.

Accepted Answer

A)  a,d
B)  b,d
C)  a,c,d
D)  a,b,c,d
E)  eF) A) and E)
G) A) and D)

Question 10

The relatively small size of the Purkinje fibers allows for the extremely rapid impulse conduction through the ventricles.

Accepted Answer

A) True 
 B)False

Question 11

The layer of the heart wall composed of cardiac muscle tissue is the

Accepted Answer

A)  pericardium.
B)  myocardium.
C)  endocardium.
D)  pericardial cavity.
E)  pectinate muscle.F) A) and E)
G) A) and D)

Question 12

The base of the heart is formed primarily by the

Accepted Answer

A)  right atrium.
B)  right ventricle.
C)  left atrium.
D)  left ventricle.
E)  None of these choices is correct.F) A) and D)
G) B) and D)

Question 13

The function of the coronary sinus is to

Accepted Answer

A)  connect the top and bottom halves of the heart.
B)  guide the aorta out of the heart.
C)  guide the inferior vena cava into the right atrium.
D)  take blood from the coronary circulation to the right atrium.
E)  shunt blood from the right atrium to the left atrium.F) A) and E)
G) B) and E)

Question 14

Sympathetic innervation of the heart
A: increases the heart rate.
B: decreases the heart rate.
C: increases the force of contractions.
D: decreases the force of contractions.
E: has no effect on contraction force.

Accepted Answer

A)  a,c
B)  b,d
C)  a,d
D)  b,e
E)  a,eF) All of the above
G) A) and B)

Question 15

The cell-to-cell contacts of the cardiac muscle fibers are called

Accepted Answer

A)  Z discs.
B)  T-tubules.
C)  intercalated discs.
D)  cardiac discs.
E)  sarcoplasmic reticulum.F) B) and C)
G) A) and D)

Question 16

The inferior chambers of the heart are called ________________.

Accepted Answer

The answer of The inferior chambers of the heart are...

Question 17

Which does not drain into the coronary sinus?

Accepted Answer

A)  Great cardiac vein
B)  Small cardiac vein
C)  Anterior interventricular vein
D)  Middle cardiac vein
E)  No exceptions;all choices drain into the coronary sinus.F) B) and E)
G) None of the above

Question 18

Which pair is located more anteriorly in a heart in normal position?

Accepted Answer

A)  Left atrium and left ventricle
B)  Left atrium and right ventricle
C)  Right atrium and left atrium
D)  Right atrium and right ventricle
E)  Right atrium and left ventricleF) C) and D)
G) A) and B)

Question 19

How many half-moon shaped,pocketlike cusps are found in each semilunar valve?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  6F) A) and C)
G) B) and D)

Question 20

As blood is pumped into the arterial trunks past the semilunar valves,it

Accepted Answer

A)  pushes against the cusps,forcing the valves open.
B)  pushes against the cusps,forcing the valves closed.
C)  fills the cusps,causing them to expand and block the backflow of blood.
D)  fills the cusps,causing them to expand and open up for the flow of blood.
E)  None of these answers is correct.F) A) and C)
G) None of the above

Exam 22: Heart

The middle layer of the heart wall that is made of cardiac muscle tissue is the ________________.

Correct Answer
verified

The function of the coronary sinus is to

Correct Answer
verified

Which does not drain into the coronary sinus?

Correct Answer
verified

The base of the heart is formed primarily by the

Correct Answer
verified

How many half-moon shaped,pocketlike cusps are found in each semilunar valve?

Correct Answer
verified

The connections shared by arteries that allow them to shunt blood from one artery to another are called _________________.

Correct Answer
verified

The cell-to-cell contacts of the cardiac muscle fibers are called

Correct Answer
verified

Correct Answer
verified

The foramen ovale is actually an opening in the

Correct Answer
verified

The layer of the heart wall composed of cardiac muscle tissue is the

Correct Answer
verified

The relatively small size of the Purkinje fibers allows for the extremely rapid impulse conduction through the ventricles.

Correct Answer
verified

During early ventricular systole the atria are in

Correct Answer
verified

The gap junctions of intercalated discs provide a low-resistance pathway across the membranes of adjoining cardiac muscle fibers.

Correct Answer
verified

Sympathetic innervation of the heart A: increases the heart rate. B: decreases the heart rate. C: increases the force of contractions. D: decreases the force of contractions. E: has no effect on contraction force.

Correct Answer
verified

Which circuit of the cardiovascular system is responsible for sending blood to the kidneys,stomach,and pelvic regions?

Correct Answer
verified

Which pair is located more anteriorly in a heart in normal position?

Correct Answer
verified

The inferior chambers of the heart are called ________________.

Correct Answer
verified

During ventricular diastole

Correct Answer
verified

The atria are separated from the ventricles externally by the

Correct Answer
verified

As blood is pumped into the arterial trunks past the semilunar valves,it

Correct Answer
verified

Exam 22: Heart

The middle layer of the heart wall that is made of cardiac muscle tissue is the ________________.

Correct AnswerverifiedShow Answer

The function of the coronary sinus is to

Correct AnswerverifiedShow Answer

Which does not drain into the coronary sinus?

Correct AnswerverifiedShow Answer

The base of the heart is formed primarily by the

Correct AnswerverifiedShow Answer

How many half-moon shaped,pocketlike cusps are found in each semilunar valve?

Correct AnswerverifiedShow Answer

The connections shared by arteries that allow them to shunt blood from one artery to another are called _________________.

Correct AnswerverifiedShow Answer

The cell-to-cell contacts of the cardiac muscle fibers are called

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The foramen ovale is actually an opening in the

Correct AnswerverifiedShow Answer

The layer of the heart wall composed of cardiac muscle tissue is the

Correct AnswerverifiedShow Answer

The relatively small size of the Purkinje fibers allows for the extremely rapid impulse conduction through the ventricles.

Correct AnswerverifiedShow Answer

During early ventricular systole the atria are in

Correct AnswerverifiedShow Answer

The gap junctions of intercalated discs provide a low-resistance pathway across the membranes of adjoining cardiac muscle fibers.

Correct AnswerverifiedShow Answer

Sympathetic innervation of the heart A: increases the heart rate. B: decreases the heart rate. C: increases the force of contractions. D: decreases the force of contractions. E: has no effect on contraction force.

Correct AnswerverifiedShow Answer

Which circuit of the cardiovascular system is responsible for sending blood to the kidneys,stomach,and pelvic regions?

Correct AnswerverifiedShow Answer

Which pair is located more anteriorly in a heart in normal position?

Correct AnswerverifiedShow Answer

The inferior chambers of the heart are called ________________.

Correct AnswerverifiedShow Answer

During ventricular diastole

Correct AnswerverifiedShow Answer

The atria are separated from the ventricles externally by the

Correct AnswerverifiedShow Answer

As blood is pumped into the arterial trunks past the semilunar valves,it

Correct AnswerverifiedShow Answer

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