Question 1

A closed circulatory system as opposed to an open system permits

Accepted Answer

A)  transport of blood which is always enclosed within vessels from and back to a pump,the heart.
B)  a larger capacity for blood.
C)  degradation of nutrients in the blood and waste removal.
D)  oxygen to be carried in cells present in the blooD.
E)  messages to be carried to the neurons.F) C) and D)
G) A) and E)

Question 2

Which of the following animals is likely to have the circulatory pattern shown in the figure?

Accepted Answer

A)  frog
B)  crocodile
C)  bird
D)  mammal
E)  fishF) B) and E)
G) B) and C)

Question 3

The cells that lack a nucleus and have a relatively short life span are

Accepted Answer

A)  neutrophils.
B)  eosinophils.
C)  basophils.
D)  erythrocytes.
E)  lymphocytes.F) A) and C)
G) B) and D)

Question 4

Which of the following vessels carries oxygenated blood?

Accepted Answer

A)  pulmonary arteries
B)  pulmonary veins
C)  femoral vein
D)  inferior vena cava
E)  renal veinF) A) and E)
G) None of the above

Question 5

Exchange of gases and metabolites between the blood and tissues occurs in the

Accepted Answer

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

Question 6

The blood cells that have some kind of protective function are all of the following except

Accepted Answer

A)  eosinophils.
B)  macrophages.
C)  neutrophils.
D)  lymphocytes.
E)  erythrocytes.F) A) and D)
G) B) and E)

Question 7

Blood is pumped from the heart into the arterial system,which branches from arteries into fine __________.

Accepted Answer

A)  arterioles
B)  venules
C)  capillaries
D)  veinsE) All of the above
F) B) and D)

Question 8

The P wave of the ECG represents

Accepted Answer

A)  the contraction of the atriA.
B)  the relaxation of the atria.
C)  the depolarization of the atria.
D)  the repolarization of the atria.
E)  the contraction of the ventriclE.F) A) and C)
G) A) and E)

Question 9

In spite of very low pressure in the veins,blood flow back to the lungs is ensured by all of the following mechanisms except

Accepted Answer

A)  veins have one-way valves.
B)  veins have thinner muscle layers.
C)  veins have thinner elastic fiber layers.
D)  veins can be expanded to hold additional blooD.
E)  veins have periodic sphincter muscles.F) B) and E)
G) A) and D)

Question 10

_________,the liquid portion of blood contains metabolites,wastes,hormones,ions,and a variety of proteins.

Accepted Answer

A)  Eosinophil
B)  Lymph
C)  Edema
D)  PlasmaE) C) and D)
F) A) and D)

Question 11

Even though the atria and ventricles are separated by connective tissue,the depolarization can slowly pass through a slender connection of cardiac muscle cells called the

Accepted Answer

A)  bundle of HIS.
B)  AV node.
C)  SA node.
D)  Purkinje fibers.
E)  tricuspid valvE.F) A) and C)
G) A) and B)

Question 12

What structure evolved into the sinoatrial node?

Accepted Answer

A)  the SV node
B)  connective tissue around the heart
C)  the sinoatrial node evolved de novo
D)  the sinus venosus
E)  the bulbus arteriosusF) None of the above
G) B) and E)

Question 13

A major innovation from the fish to the amphibian/reptilian circulation is the advent of lungs and allowing no mixing of oxygenated and __________ blood by the help of incomplete divisions of the heart.

Accepted Answer

A)  decarbonated
B)  nitrogenated
C)  deoxygenated
D)  hydrogenatedE) B) and C)
F) A) and D)

Question 14

Primitive chordates contain a heart which has

Accepted Answer

A)  a specialized zone of the ventral artery.
B)  two chambers.
C)  three chambers.
D)  four chambers.
E)  only a ventriclE.F) B) and E)
G) A) and C)

Question 15

One mechanism that involves the blood supply that can be utilized by some animals to limit heat loss in cold environments is

Accepted Answer

A)  vasodilation of the near surface blood vessels.
B)  vasodilation of below surface blood vessels.
C)  vasoconstriction of the precapillary sphincters in the skin.
D)  vasoconstriction of veins.
E)  increasing cardiac output.F) All of the above
G) A) and E)

Question 16

Which of the following values would be considered hypertensive?

Accepted Answer

A)  16/12 mm Hg
B)  120/80 mm Hg
C)  100/150 mm Hg
D)  100/60 mm Hg
E)  160/120 mm HgF) A) and D)
G) A) and E)

Question 17

All of the following are functions of the circulatory system except

Accepted Answer

A)  oxygen,nutrient,and waste transport.
B)  synthesis of red and white blood cells.
C)  blood clotting and immune defense.
D)  temperature regulation.
E)  hormone transport.F) A) and C)
G) B) and D)

Question 18

During circulation blood is filtered out of capillaries without any proteins.This fluid bathes the tissues and is called

Accepted Answer

A)  lymph.
B)  serum.
C)  interstitial fluid.
D)  synovial fluiD.
E)  plasma.F) None of the above
G) A) and B)

Question 19

Which of the following type of cell is not correctly matched to its function?

Accepted Answer

A)  platelets-blood clotting
B)  leukocytes-immunity
C)  erythrocytes-new cell production
D)  leukocytes-phagocytosis
E)  erythrocytes-oxygen transportF) A) and B)
G) A) and E)

Exam 50: The Circulatory System

Which of the following animals is likely to have the circulatory pattern shown in the figure?

Correct Answer
verified

Exchange of gases and metabolites between the blood and tissues occurs in the

Correct Answer
verified

Blood is pumped from the heart into the arterial system,which branches from arteries into fine __________.

Correct Answer
verified

What structure evolved into the sinoatrial node?

Correct Answer
verified

Which of the following vessels carries oxygenated blood?

Correct Answer
verified

One mechanism that involves the blood supply that can be utilized by some animals to limit heat loss in cold environments is

Correct Answer
verified

Primitive chordates contain a heart which has

Correct Answer
verified

A closed circulatory system as opposed to an open system permits

Correct Answer
verified

Which of the following values would be considered hypertensive?

Correct Answer
verified

In spite of very low pressure in the veins,blood flow back to the lungs is ensured by all of the following mechanisms except

Correct Answer
verified

A major innovation from the fish to the amphibian/reptilian circulation is the advent of lungs and allowing no mixing of oxygenated and __________ blood by the help of incomplete divisions of the heart.

Correct Answer
verified

The P wave of the ECG represents

Correct Answer
verified

The blood cells that have some kind of protective function are all of the following except

Correct Answer
verified

_________,the liquid portion of blood contains metabolites,wastes,hormones,ions,and a variety of proteins.

Correct Answer
verified

Which of the following type of cell is not correctly matched to its function?

Correct Answer
verified

The cells that lack a nucleus and have a relatively short life span are

Correct Answer
verified

During circulation blood is filtered out of capillaries without any proteins.This fluid bathes the tissues and is called

Correct Answer
verified

Even though the atria and ventricles are separated by connective tissue,the depolarization can slowly pass through a slender connection of cardiac muscle cells called the

Correct Answer
verified

All of the following are functions of the circulatory system except

Correct Answer
verified

Exam 50: The Circulatory System

Which of the following animals is likely to have the circulatory pattern shown in the figure?

Correct AnswerverifiedShow Answer

Exchange of gases and metabolites between the blood and tissues occurs in the

Correct AnswerverifiedShow Answer

Blood is pumped from the heart into the arterial system,which branches from arteries into fine __________.

Correct AnswerverifiedShow Answer

What structure evolved into the sinoatrial node?

Correct AnswerverifiedShow Answer

Which of the following vessels carries oxygenated blood?

Correct AnswerverifiedShow Answer

One mechanism that involves the blood supply that can be utilized by some animals to limit heat loss in cold environments is

Correct AnswerverifiedShow Answer

Primitive chordates contain a heart which has

Correct AnswerverifiedShow Answer

A closed circulatory system as opposed to an open system permits

Correct AnswerverifiedShow Answer

Which of the following values would be considered hypertensive?

Correct AnswerverifiedShow Answer

In spite of very low pressure in the veins,blood flow back to the lungs is ensured by all of the following mechanisms except

Correct AnswerverifiedShow Answer

A major innovation from the fish to the amphibian/reptilian circulation is the advent of lungs and allowing no mixing of oxygenated and __________ blood by the help of incomplete divisions of the heart.

Correct AnswerverifiedShow Answer

The P wave of the ECG represents

Correct AnswerverifiedShow Answer

The blood cells that have some kind of protective function are all of the following except

Correct AnswerverifiedShow Answer

_________,the liquid portion of blood contains metabolites,wastes,hormones,ions,and a variety of proteins.

Correct AnswerverifiedShow Answer

Which of the following type of cell is not correctly matched to its function?

Correct AnswerverifiedShow Answer

The cells that lack a nucleus and have a relatively short life span are

Correct AnswerverifiedShow Answer

During circulation blood is filtered out of capillaries without any proteins.This fluid bathes the tissues and is called

Correct AnswerverifiedShow Answer

Even though the atria and ventricles are separated by connective tissue,the depolarization can slowly pass through a slender connection of cardiac muscle cells called the

Correct AnswerverifiedShow Answer

All of the following are functions of the circulatory system except

Correct AnswerverifiedShow Answer

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