Question 1

What would you find in the heart of an amphibian?

Accepted Answer

A)  one atrium and one ventricle
B)  two atria and one ventricle
C)  one atrium and two ventricles
D)  two atria and two ventricles
E)  two atria and a partially divided ventricleF) C) and D)
G) A) and C)

Question 2

All capillary beds have blood running to them at all times.

Accepted Answer

A) True 
 B)False

Question 3

A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed.If the heart sound is lub-dub-ssshhh,the most likely cause is a failure of the

Accepted Answer

A)  atrioventricular valves.
B)  semilunar valves.
C)  mitral (bicuspid) valve.
D)  AV node to signal contraction.
E)  sinoatrial node to signal contraction.F) A) and D)
G) C) and D)

Question 4

When you step on a cockroach or smash a fly,the blood appears colorless because

Accepted Answer

A)  the blood is enclosed in a closed circulatory system.
B)  the blood is actually a colorless hemolymph that carries oxygen on molecules other than reddish hemoglobin.
C)  there are no cells in the hemolymph.
D)  it does not contain hemoglobin or any other respiratory pigment.E) C) and D)
F) A) and B)

Question 5

The pacemaker of the cardiac conduction system is the

Accepted Answer

A)  atrioventricular node.
B)  sinoatrial node.
C)  medulla oblongata.
D)  Purkinje fibers.E) A) and D)
F) B) and C)

Question 6

Platelets will release prothrombin activator at the site of an injury to initiate the clotting sequence.

Accepted Answer

A) True 
 B)False

Question 7

The structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the

Accepted Answer

A)  hepatic portal artery.
B)  hepatic portal vein.
C)  renal vein.
D)  None of the choices are correct.E) B) and C)
F) All of the above

Question 8

Which group of vertebrates will lack a pulmonary circuit?

Accepted Answer

A)  fish
B)  frogs
C)  birds
D)  annelids
E)  mammalsF) A) and B)
G) A) and D)

Question 9

Major cardiovascular disorders include all of the following EXCEPT

Accepted Answer

A)  atherosclerosis.
B)  stroke.
C)  hypertension.
D)  diabetes.E) All of the above
F) None of the above

Question 10

Which of the following features enable organisms like planarian to respire and exchange nutrients?

Accepted Answer

A)  a trilobed gastrovascular cavity
B)  closed circulatory system
C)  an open circulatory system
D)  coelomic fluidE) A) and B)
F) B) and C)

Question 11

A person who is B positive will have

Accepted Answer

A)  A antigens,antibodies to B,and Rh antigens.
B)  B antibodies,antibodies to A,and Rh antigens.
C)  B antigens,antibodies to A,and no Rh antigens.
D)  B antigens,antibodies to A,and Rh antigens.
E)  B antigens,antibodies to B,and Rh antigens.F) C) and D)
G) A) and C)

Question 12

Veins primarily depend upon which of the following forces to return blood to the heart?

Accepted Answer

A)  force of blood entering from the arteries
B)  skeletal muscle contraction
C)  valves to prevent blood back flow
D)  All of the choices apply.E) None of the above
F) A) and B)

Question 13

Which of the following organisms will contain hemolymph as the fluid of their circulatory system?

Accepted Answer

A)  grasshopper
B)  sea star
C)  molluscs
D)  All of the above have hemolymphE) A) and D)
F) B) and C)

Question 14

What is the correct order of blood flow through the cardiovascular system?

Accepted Answer

A)  Heart - artery - arterioles - capillaries - venules - veins
B)  Heart - arterioles - artery - capillary - venules - veins
C)  Heart - artery - arterioles - capillaries - veins - venules
D)  Capillaries - venules - veins - heart - arterioles - artery
E)  Capillaries - arterioles - artery - heart - venules - veinsF) All of the above
G) D) and E)

Question 15

Open circulatory systems are characterized by the presence of hemolymph as seen in annelids.

Accepted Answer

A) True 
 B)False

Question 16

Which valve is responsible for preventing the backflow of blood into the right ventricle?

Accepted Answer

A)  Pulmonary semilunar
B)  Aortic valve
C)  Tricuspid
D)  Bicuspid
E)  MitralF) B) and E)
G) A) and E)

Question 17

What is the main difference between blood and hemolymph?

Accepted Answer

A)  Blood is always contained within the blood vessels while lymph fills the body cavity.
B)  Hemolymph is always contained within the blood vessels while blood fills the body cavity.
C)  Hemolymph is never carried in blood vessels.
D)  Blood will transport oxygen and nutrients while lymph will only transport oxygen.E) None of the above
F) All of the above

Question 18

"Artery" and "vein" are defined by whether they leave or enter the heart.If they were defined by whether they carried oxygenated or deoxygenated blood,we would have to change the name(s) of

Accepted Answer

A)  the hepatic portal vein to a hepatic portal artery.
B)  the hepatic and renal systems; they would have to be switched.
C)  the pulmonary artery and vein; they would have to be switched.
D)  the coronary artery and vein; they would have to be switched.
E)  none,since the aorta and vena cava do not have "artery" and "vein" in their name.F) A) and E)
G) A) and D)

Question 19

What would you find in the heart of most reptiles?

Accepted Answer

A)  one atrium and one ventricle
B)  two atria and one ventricle
C)  one atrium and two ventricles
D)  two atria and two ventricles
E)  two atria and a partially divided ventricleF) B) and E)
G) A) and E)

Question 20

The SA node receives the initial electrical impulse that will trigger the atrial fibers to contract.

Accepted Answer

A) True 
 B)False

Exam 32: Circulation and Cardiovascular Systems

Which valve is responsible for preventing the backflow of blood into the right ventricle?

Correct AnswerverifiedShow Answer

Platelets will release prothrombin activator at the site of an injury to initiate the clotting sequence.

Correct AnswerverifiedShow Answer

Major cardiovascular disorders include all of the following EXCEPT

Correct AnswerverifiedShow Answer

When you step on a cockroach or smash a fly,the blood appears colorless because

Correct AnswerverifiedShow Answer

All capillary beds have blood running to them at all times.

Correct AnswerverifiedShow Answer

The structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the

Correct AnswerverifiedShow Answer

What is the correct order of blood flow through the cardiovascular system?

Correct AnswerverifiedShow Answer

The SA node receives the initial electrical impulse that will trigger the atrial fibers to contract.

Correct AnswerverifiedShow Answer

Which group of vertebrates will lack a pulmonary circuit?

Correct AnswerverifiedShow Answer

A person who is B positive will have

Correct AnswerverifiedShow Answer

What is the main difference between blood and hemolymph?

Correct AnswerverifiedShow Answer

The pacemaker of the cardiac conduction system is the

Correct AnswerverifiedShow Answer

A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed.If the heart sound is lub-dub-ssshhh,the most likely cause is a failure of the

Correct AnswerverifiedShow Answer

Open circulatory systems are characterized by the presence of hemolymph as seen in annelids.

Correct AnswerverifiedShow Answer

What would you find in the heart of most reptiles?

Correct AnswerverifiedShow Answer

Which of the following organisms will contain hemolymph as the fluid of their circulatory system?

Correct AnswerverifiedShow Answer

Which of the following features enable organisms like planarian to respire and exchange nutrients?

Correct AnswerverifiedShow Answer

Veins primarily depend upon which of the following forces to return blood to the heart?

Correct AnswerverifiedShow Answer

"Artery" and "vein" are defined by whether they leave or enter the heart.If they were defined by whether they carried oxygenated or deoxygenated blood,we would have to change the name(s) of

Correct AnswerverifiedShow Answer

What would you find in the heart of an amphibian?

Correct AnswerverifiedShow Answer

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