Question 1

Which set of chambers supplies blood to the pulmonary circulation?

Accepted Answer

A)   Left atrium and left ventricle
B)   Right atrium and right ventricle
C)   Ventricles
D)   AtriaE) All of the above
F) None of the above

Question 2

The human heart contains cells that do all of the following EXCEPT

Accepted Answer

A)   generate electrical signals.
B)   contract.
C)   create new red blood cells.
D)   respond to signals from the nervous system.E) All of the above
F) None of the above

Question 3

How do lymphatic capillaries differ from blood capillaries?

Accepted Answer

A)   They have ʺdead ends.ʺ
B)   They are made by lymphocytes.
C)   They contain plasma.
D)   They contain red blood cells.
E)   They have a wall only one cell layer thick.F) A) and B)
G) A) and C)

Question 4

When your physician takes your pulse, he or she is feeling the expansion and contraction of your

Accepted Answer

A)   veins or venules.
B)   capillaries.
C)   arteries or arterioles.
D)   arteries and veins.E) C) and D)
F) B) and D)

Question 5

White blood cells

Accepted Answer

A)   clot blood.
B)   are formed in the spleen.
C)   carry oxygen in blood.
D)   protect the body from microbes.E) A) and D)
F) A) and C)

Question 6

Plasma that leaks out of the blood in the capillary beds is returned to the venous circulation by

Accepted Answer

A)   the small intestine.
B)   the inflammatory response.
C)   the lymphatic system.
D)   suppressor B cells.E) All of the above
F) B) and D)

Question 7

Red blood cells carry oxygen that is attached to a large, iron-containing protein called_________.

Accepted Answer

The answer of Red blood cells carry oxygen that is...

Question 8

Which of these animals has a heart with only two chambers?

Accepted Answer

A)   Cat
B)   Goldfish
C)   Hummingbird
D)   Bullfrog
E)   HumanF) A) and D)
G) C) and D)

Question 9

Which of the following includes lymphocytes?

Accepted Answer

A)   Platelets
B)   Red blood cells
C)   White blood cells
D)   AlbuminE) A) and B)
F) None of the above

Question 10

Erythropoietin stimulates the manufacture of

Accepted Answer

A)   albumin.
B)   red blood cells.
C)   white blood cells.
D)   platelets.E) None of the above
F) A) and D)

Question 11

What drives the return of blood to the heart in the systemic veins?

Accepted Answer

A)   Muscles squeezing blood through the veins
B)   Ciliated cells lining the inside of the veins
C)   The lymphatic system
D)   Contractions of the left auricleE) C) and D)
F) None of the above

Question 12

Plasma contains all of the following components EXCEPT

Accepted Answer

A)   albumin.
B)   water.
C)   hormones.
D)   lymph.E) C) and D)
F) A) and D)

Question 13

What is the cardiac cycle?

Accepted Answer

A)   The passage of electrical impulses from the AV node to the SN node to heart muscle
B)   The alternating relaxation and contraction of the heart chambers
C)   The movement of blood from systemic to pulmonary circulation
D)   The movement of blood from the heart to the lungs and then back to the heartE) A) and C)
F) A) and B)

Question 14

While sitting in front of the TV, the average person?s heart rate is about 70 beats per minute because the nervous system slows the heart down from the approximately 100 beats per minute that the pacemaker, the_________ node, sets.

Accepted Answer

The answer of While sitting in front of the TV,...

Question 15

Erythrocytes are produced in the

Accepted Answer

A)   spleen.
B)   heart.
C)   liver.
D)   bone marrow.E) None of the above
F) A) and B)

Question 16

The aorta

Accepted Answer

A)   is a major vein.
B)   connects the right and left ventricles of the heart.
C)   contains blood with low pressure.
D)   is a major artery.E) A) and C)
F) All of the above

Question 17

It is important that the atrioventricular (AV)  node produce a delay between the contraction of the atria and the contraction of the ventricles because this allows the

Accepted Answer

A)   ventricles to fill to capacity.
B)   atria to contract in smooth synchrony.
C)   heart to rest for a brief period of time.
D)   ventricles to contract in smooth synchrony.E) A) and B)
F) A) and C)

Question 18

The average red blood cell lives for about_________ days.

Accepted Answer

A)   100
B)   120
C)   150
D)   90E) B) and C)
F) A) and D)

Question 19

In which vertebrate group are there two atria but only a single ventricle?

Accepted Answer

A)   Crocodiles
B)   Birds
C)   Fishes
D)   Some reptiles
E)   MammalsF) B) and C)
G) A) and B)

Question 20

Thrombin catalyzes the conversion of the plasma protein fibrinogen into fibrin.

Accepted Answer

A) True 
 B)False

Exam 33: Circulation

The average red blood cell lives for about_________ days.

Correct AnswerverifiedShow Answer

It is important that the atrioventricular (AV) node produce a delay between the contraction of the atria and the contraction of the ventricles because this allows the

Correct AnswerverifiedShow Answer

How do lymphatic capillaries differ from blood capillaries?

Correct AnswerverifiedShow Answer

What drives the return of blood to the heart in the systemic veins?

Correct AnswerverifiedShow Answer

Which set of chambers supplies blood to the pulmonary circulation?

Correct AnswerverifiedShow Answer

Which of these animals has a heart with only two chambers?

Correct AnswerverifiedShow Answer

Red blood cells carry oxygen that is attached to a large, iron-containing protein called_________.

Correct AnswerverifiedShow Answer

In which vertebrate group are there two atria but only a single ventricle?

Correct AnswerverifiedShow Answer

Plasma contains all of the following components EXCEPT

Correct AnswerverifiedShow Answer

White blood cells

Correct AnswerverifiedShow Answer

Which of the following includes lymphocytes?

Correct AnswerverifiedShow Answer

What is the cardiac cycle?

Correct AnswerverifiedShow Answer

Erythrocytes are produced in the

Correct AnswerverifiedShow Answer

Thrombin catalyzes the conversion of the plasma protein fibrinogen into fibrin.

Correct AnswerverifiedShow Answer

Erythropoietin stimulates the manufacture of

Correct AnswerverifiedShow Answer

The human heart contains cells that do all of the following EXCEPT

Correct AnswerverifiedShow Answer

When your physician takes your pulse, he or she is feeling the expansion and contraction of your

Correct AnswerverifiedShow Answer

The aorta

Correct AnswerverifiedShow Answer

Plasma that leaks out of the blood in the capillary beds is returned to the venous circulation by

Correct AnswerverifiedShow Answer

While sitting in front of the TV, the average person?s heart rate is about 70 beats per minute because the nervous system slows the heart down from the approximately 100 beats per minute that the pacemaker, the_________ node, sets.

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