Question 1

The anterior part of each atrium is a flaplike extension called a(n)_______________.

Accepted Answer

The answer of The anterior part of each atrium is...

Question 2

During ventricular systole

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) All of the above
G) C) and D)

Question 3

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) A) and E)

Question 4

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) None of the above
G) All of the above

Question 5

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) C) and E)
G) D) and E)

Question 6

________________ innervation increases the rate and the force of heart contraction.

Accepted Answer

The answer of ________________ innervation increases the rate and the...

Question 7

The trabeculae carneae in the left ventricle are ____________ in the right ventricle.

Accepted Answer

A)  less prominent than
B)  not present as
C)  more prominent than
D)  equally as prominent as
E)  None of these answers is correct.F) B) and C)
G) B) and E)

Question 8

Which describes the endocardium? 
A: Has single layer of epithelium
B: Has layer of areolar connective tissue
C: Epithelial cells are squamous
D: Epithelial cells are cuboidal
E: Has layer of adipose connective tissue
F: Has patches of myocardium

Accepted Answer

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

Question 9

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 D)
G) A) and B)

Question 10

Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?

Accepted Answer

A)  Left atrioventricular valve
B)  Aortic semilunar valve
C)  Right atrioventricular valve
D)  Pulmonary semilunar valve
E)   None of these answers is correct.F) C) and D)
G) All of the above

Question 11

Like the right atrium,the left atrium has pectinate muscles along its anterior wall.

Accepted Answer

A) True 
 B)False

Question 12

For ___________ of the cardiac cycle,all four chambers are in diastole together.

Accepted Answer

A)  none
B)  one-third
C)  one-quarter
D)  one-half
E)  three-quartersF) A) and D)
G) A) and E)

Question 13

Which carries oxygenated blood from the lungs to the heart?

Accepted Answer

A)  Pulmonary arteries
B)  Pulmonary veins
C)  Pulmonary trunk
D)  Inferior vena cava
E)  Superior vena cavaF) None of the above
G) A) and B)

Question 14

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) None of the above
G) All of the above

Question 15

Another name for the visceral layer of the serous pericardium is ________________.

Accepted Answer

The answer of Another name for the visceral layer of...

Question 16

It is the contraction of the atria during atrial systole that completes the filling of the ventricles while the ventricles are in diastole.

Accepted Answer

A) True 
 B)False

Question 17

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) C) and D)
G) A) and E)

Question 18

Which are differences between cardiac muscle tissue and skeletal muscle tissue? 
A: The sarcoplasmic reticulum in cardiac muscle is less extensive.
B: The sarcoplasmic reticulum in cardiac muscle is more organized.
C: Cardiac muscle has intercalated discs; skeletal muscle does not.
D: Cardiac muscle has 1 or 2 nuclei per cell; skeletal muscle has multiple nuclei per cell.
E: Cardiac muscle has more well defined terminal cisternae.

Accepted Answer

A)  a,c,d
B)  a,c,e
C)  b,c,e
D)  a,b,e
E)  b,d,eF) A) and B)
G) None of the above

Question 19

Sympathetic innervation of the heart arises from the ________ segments of the spinal cord.

Accepted Answer

A)  T1-T5
B)  T3-T8
C)  T5-T10
D)  T6-T11
E)  T11-L2F) A) and D)
G) C) and D)

Question 20

The pulmonary arteries carry _______________ blood to the lungs.

Accepted Answer

The answer of The pulmonary arteries carry _______________ blood to...

Exam 22: Heart

The function of the coronary sinus is to

Correct Answer
verified

The anterior part of each atrium is a flaplike extension called a(n)_______________.

Correct Answer
verified

Sympathetic innervation of the heart arises from the ________ segments of the spinal cord.

Correct Answer
verified

The trabeculae carneae in the left ventricle are ____________ in the right ventricle.

Correct Answer
verified

Which carries oxygenated blood from the lungs to the heart?

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

It is the contraction of the atria during atrial systole that completes the filling of the ventricles while the ventricles are in diastole.

Correct Answer
verified

Another name for the visceral layer of the serous pericardium is ________________.

Correct Answer
verified

During ventricular systole

Correct Answer
verified

Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?

Correct Answer
verified

________________ innervation increases the rate and the force of heart contraction.

Correct Answer
verified

The pulmonary arteries carry _______________ blood to the lungs.

Correct Answer
verified

Like the right atrium,the left atrium has pectinate muscles along its anterior wall.

Correct Answer
verified

For ___________ of the cardiac cycle,all four chambers are in diastole together.

Correct Answer
verified

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

Correct Answer
verified

The base of the heart is formed primarily by the

Correct Answer
verified

Which describes the endocardium? A: Has single layer of epithelium B: Has layer of areolar connective tissue C: Epithelial cells are squamous D: Epithelial cells are cuboidal E: Has layer of adipose connective tissue F: Has patches of myocardium

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Exam 22: Heart

The function of the coronary sinus is to

Correct AnswerverifiedShow Answer

The anterior part of each atrium is a flaplike extension called a(n)_______________.

Correct AnswerverifiedShow Answer

Sympathetic innervation of the heart arises from the ________ segments of the spinal cord.

Correct AnswerverifiedShow Answer

The trabeculae carneae in the left ventricle are ____________ in the right ventricle.

Correct AnswerverifiedShow Answer

Which carries oxygenated blood from the lungs to the heart?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

It is the contraction of the atria during atrial systole that completes the filling of the ventricles while the ventricles are in diastole.

Correct AnswerverifiedShow Answer

Another name for the visceral layer of the serous pericardium is ________________.

Correct AnswerverifiedShow Answer

During ventricular systole

Correct AnswerverifiedShow Answer

Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?

Correct AnswerverifiedShow Answer

________________ innervation increases the rate and the force of heart contraction.

Correct AnswerverifiedShow Answer

The pulmonary arteries carry _______________ blood to the lungs.

Correct AnswerverifiedShow Answer

Like the right atrium,the left atrium has pectinate muscles along its anterior wall.

Correct AnswerverifiedShow Answer

For ___________ of the cardiac cycle,all four chambers are in diastole together.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The base of the heart is formed primarily by the

Correct AnswerverifiedShow Answer

Which describes the endocardium? A: Has single layer of epithelium B: Has layer of areolar connective tissue C: Epithelial cells are squamous D: Epithelial cells are cuboidal E: Has layer of adipose connective tissue F: Has patches of myocardium

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified