Question 1

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 2

The right border of the heart is supplied by the

Accepted Answer

A)  circumflex artery.
B)  posterior interventricular artery.
C)  anterior interventricular artery.
D)  right marginal artery.
E)  great cardiac vein.F) None of the above
G) A) and B)

Question 3

In an EKG,the P wave is generated when the

Accepted Answer

A)  ventricles depolarize.
B)  atria depolarize.
C)  atria repolarize.
D)  ventricles repolarize.
E)  SA node initiates an impulse.F) B) and E)
G) A) and B)

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) All of the above
F) A) and D)

Question 5

Because of the constant inflow of blood,the atria are thick-walled and located inferiorly in the heart.

Accepted Answer

A) True 
 B)False

Question 6

The property that allows the heart to initiate each heartbeat itself is called __________________.

Accepted Answer

The answer of The property that allows the heart to...

Question 7

It is during weeks 5-8 that the single heart tube of the embryo becomes partitioned into four chambers and the main vessels that leave and enter the heart form.

Accepted Answer

A) True 
 B)False

Question 8

The inferior,conical end of the heart is called the _______________.

Accepted Answer

The answer of The inferior,conical end of the heart is...

Question 9

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) A) and E)

Question 10

During a cardiac cycle,how many of the four chambers contract at any one time?

Accepted Answer

A)  1
B)  2
C)  4
D)  Highly variable,depending on the heart beat rate
E)  None of these answers is correct.F) A) and C)
G) All of the above

Question 11

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 12

Parasympathetic innervation of the heart occurs via

Accepted Answer

A)  CN IV.
B)  CN VI.
C)  CN VIII.
D)  CN X.
E)  CN XII.F) A) and B)
G) A) and E) D

Question 13

The right and left coronary arteries are the only branches of the ascending aorta.

Accepted Answer

A) True 
 B)False  True

Question 14

Most coronary blood flow occurs during ventricular ________________.

Accepted Answer

The answer of Most coronary blood flow occurs during ventricular...

Question 15

The term used to describe the inadequate blood flow to a structure caused by obstruction of the blood supply is _________________.

Accepted Answer

ischemia

Question 16

The sequence of events in the transmission of an impulse through the heart muscle is 
A: AV node
B: AV bundle
C: SA node
D: through the atria
E: through the ventricles
F: bundle branches
G: Purkinje fibers

Accepted Answer

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

Question 17

The left atrium and left ventricle are part of which circuit of the cardiovascular system?

Accepted Answer

A)  Pulmonary circuit
B)  Systemic circuitC) A) and B)
D) undefined

Question 18

About seventy percent of the ventricle filling is achieved passively without the contraction of the atria.

Accepted Answer

A) True 
 B)False

Question 19

All of the heart's sulci house blood vessels that supply the myocardium.

Accepted Answer

A) True 
 B)False

Question 20

The serous fluid within the pericardial cavity works to

Accepted Answer

A)  lubricate the membranes of the serous pericardium.
B)  slow the heart rate.
C)  equalize the pressure in the great vessels.
D)  eliminate blood pressure spikes.E) C) and D)
F) B) and D)

Exam 22: Heart

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

Correct AnswerverifiedShow Answer

The right border of the heart is supplied by the

Correct AnswerverifiedShow Answer

In an EKG,the P wave is generated when the

Correct AnswerverifiedShow Answer

The atria are separated from the ventricles externally by the

Correct AnswerverifiedShow Answer

Because of the constant inflow of blood,the atria are thick-walled and located inferiorly in the heart.

Correct AnswerverifiedShow Answer

The property that allows the heart to initiate each heartbeat itself is called __________________.

Correct AnswerverifiedShow Answer

It is during weeks 5-8 that the single heart tube of the embryo becomes partitioned into four chambers and the main vessels that leave and enter the heart form.

Correct AnswerverifiedShow Answer

The inferior,conical end of the heart is called the _______________.

Correct AnswerverifiedShow Answer

Which does not drain into the coronary sinus?

Correct AnswerverifiedShow Answer

During a cardiac cycle,how many of the four chambers contract at any one time?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Parasympathetic innervation of the heart occurs via

Correct AnswerverifiedD

The right and left coronary arteries are the only branches of the ascending aorta.

Correct AnswerverifiedTrue

Most coronary blood flow occurs during ventricular ________________.

Correct AnswerverifiedShow Answer

The term used to describe the inadequate blood flow to a structure caused by obstruction of the blood supply is _________________.

Correct Answerverifiedischemia

The sequence of events in the transmission of an impulse through the heart muscle is A: AV node B: AV bundle C: SA node D: through the atria E: through the ventricles F: bundle branches G: Purkinje fibers

Correct AnswerverifiedShow Answer

The left atrium and left ventricle are part of which circuit of the cardiovascular system?

Correct AnswerverifiedShow Answer

About seventy percent of the ventricle filling is achieved passively without the contraction of the atria.

Correct AnswerverifiedShow Answer

All of the heart's sulci house blood vessels that supply the myocardium.

Correct AnswerverifiedShow Answer

The serous fluid within the pericardial cavity works to

Correct AnswerverifiedShow Answer

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D

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True

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ischemia

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