Question 1

The human circulatory system transports blood in a one-directional circuit throughout the body.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is an artery that supplies blood to the heart muscle?

Accepted Answer

A)  aorta
B)  coronary artery
C)  carotid artery
D)  superior vena cava
E)  inferior vena cavaF) C) and D)
G) A) and C)

Question 3

At the capillaries,___________ leaves red blood cells and _____________ enters the circulation.

Accepted Answer

A)  nitrogen;oxygen
B)  carbon dioxide;oxygen
C)  carbon dioxide;nitrogen
D)  oxygen;carbon dioxide
E)  sodium;oxygenF) A) and B)
G) C) and E)

Question 4

The two largest veins of the body that deliver blood to the right atrium are the

Accepted Answer

A)  pulmonary vein and inferior vena cavA.
B)  superior vena cava and pulmonary vein.
C)  aorta and inferior vena cava.
D)  inferior vena cava and superior vena cava.
E)  aorta and superior vena cava.F) B) and E)
G) B) and C)

Question 5

The major artery that carries oxygenated blood away from the heart is the

Accepted Answer

A)  pulmonary artery.
B)  aorta.
C)  carotid artery.
D)  renal artery.
E)  brachial artery.F) B) and D)
G) B) and C)

Question 6

Which of the following arteries does not carry oxygenated blood?

Accepted Answer

A)  pulmonary artery
B)  femoral artery
C)  renal artery
D)  aorta
E)  carotid arteryF) B) and C)
G) C) and D)

Question 7

A whole blood cell transfusion would be used to treat which of the following?

Accepted Answer

A)  arrhythmia
B)  aneurysm
C)  anemia
D)  heart attack due to atherosclerosis
E)  tachycardiaF) A) and E)
G) A) and C)

Question 8

Why could not a human absorb enough oxygen through their skin like sea anemones are able to?

Accepted Answer

A)  Our surface area to volume ratio is too high for oxygen to reach all tissues.
B)  Sea anemones live in water,and there is more oxygen available.
C)  Our surface area to volume ratio is too low for oxygen to reach all tissues.
D)  Our capillaries do not come close enough to the skin to absorb oxygen.
E)  Sea anemones have a larger heart relative to the rest of their body.F) None of the above
G) C) and D)

Question 9

Smoking is known to block the movement of cilia in the bronchi.Which of the following would you expect to find in the airways of a smoker?

Accepted Answer

A)  more bacteria
B)  less mucus
C)  more cilia
D)  more cilia and less mucus
E)  more bacteria and mucusF) A) and B)
G) B) and C)

Question 10

The sinoatrial node sets the tempo of the heart beat.

Accepted Answer

A) True 
 B)False

Question 11

The major vein that delivers blood from the lungs to the heart is the

Accepted Answer

A)  femoral vein.
B)  inferior vena cava.
C)  superior vena cava.
D)  pulmonary vein.
E)  jugular vein.F) A) and B)
G) D) and E)

Question 12

Blood in the pulmonary artery would have ___ oxygen and ___ carbon dioxide than blood in the pulmonary vein.

Accepted Answer

A)  more;less
B)  the same;less
C)  less;more
D)  more;the same
E)  less;lessF) A) and C)
G) A) and B)

Question 13

The _________________ nervous system controls the contraction of __________________ in the wall of the bronchioles,thereby adjusting airflow in response to metabolic demands.

Accepted Answer

A)  somatic;smooth muscle
B)  autonomic;skeletal muscle
C)  somatic;skeletal
D)  autonomic;smooth muscle
E)  autonomic;cartilageF) A) and B)
G) A) and D)

Question 14

The medulla has receptors that monitor H+ concentrations in the blood.

Accepted Answer

A) True 
 B)False

Question 15

The cellular components of blood that destroy foreign substances are

Accepted Answer

A)  red blood cells.
B)  cartilage cells.
C)  platelets.
D)  leukocytes.
E)  bone cells.F) A) and E)
G) A) and B)

Question 16

An increase to 0.5% carbon dioxide in the air (from the normal 0.03%) makes us breathe 10 times faster.Which of the following would limit how long you can hold your breath?

Accepted Answer

A)  Lack of carbon dioxide raises the pH.
B)  Lack of oxygen raises the pH.
C)  Buildup of carbon dioxide lowers the pH.
D)  Build up of oxygen lowers the pH.
E)  Build up of nitrogen raises the pH.F) A) and D)
G) D) and E)

Question 17

The instrument that measures blood pressure is the

Accepted Answer

A)  barometer.
B)  stethoscope.
C)  electrocardiogram.
D)  sphygmomanometer.
E)  hygrometer.F) B) and D)
G) D) and E)

Question 18

The largest artery in the body is the

Accepted Answer

A)  coronary artery.
B)  superior vena cava.
C)  aorta.
D)  pulmonary artery.
E)  carotid artery.F) B) and D)
G) A) and C)

Question 19

In the systemic circulation,____________________ is expelled from the blood and __________________ is picked up.

Accepted Answer

A)  oxygen;nitrogen
B)  carbon dioxide;nitrogen
C)  carbon dioxide;oxygen
D)  oxygen;carbon dioxide
E)  nitrogen;oxygenF) C) and E)
G) None of the above

Question 20

The middle layer of the wall of an artery or vein,allowing it to withstand and modify blood pressure,is

Accepted Answer

A)  connective tissue.
B)  skeletal muscle.
C)  smooth muscle.
D)  endothelium.
E)  simple squamous epithelial cells.F) All of the above
G) A) and E)

Exam 27: The Circulatory and Respiratory Systems

The cellular components of blood that destroy foreign substances are

Correct AnswerverifiedShow Answer

The sinoatrial node sets the tempo of the heart beat.

Correct AnswerverifiedShow Answer

The two largest veins of the body that deliver blood to the right atrium are the

Correct AnswerverifiedShow Answer

In the systemic circulation,____________________ is expelled from the blood and __________________ is picked up.

Correct AnswerverifiedShow Answer

Which of the following arteries does not carry oxygenated blood?

Correct AnswerverifiedShow Answer

Blood in the pulmonary artery would have ___ oxygen and ___ carbon dioxide than blood in the pulmonary vein.

Correct AnswerverifiedShow Answer

The medulla has receptors that monitor H+ concentrations in the blood.

Correct AnswerverifiedShow Answer

The _________________ nervous system controls the contraction of __________________ in the wall of the bronchioles,thereby adjusting airflow in response to metabolic demands.

Correct AnswerverifiedShow Answer

The largest artery in the body is the

Correct AnswerverifiedShow Answer

The instrument that measures blood pressure is the

Correct AnswerverifiedShow Answer

At the capillaries,___________ leaves red blood cells and _____________ enters the circulation.

Correct AnswerverifiedShow Answer

A whole blood cell transfusion would be used to treat which of the following?

Correct AnswerverifiedShow Answer

The middle layer of the wall of an artery or vein,allowing it to withstand and modify blood pressure,is

Correct AnswerverifiedShow Answer

Why could not a human absorb enough oxygen through their skin like sea anemones are able to?

Correct AnswerverifiedShow Answer

The major artery that carries oxygenated blood away from the heart is the

Correct AnswerverifiedShow Answer

An increase to 0.5% carbon dioxide in the air (from the normal 0.03%) makes us breathe 10 times faster.Which of the following would limit how long you can hold your breath?

Correct AnswerverifiedShow Answer

Smoking is known to block the movement of cilia in the bronchi.Which of the following would you expect to find in the airways of a smoker?

Correct AnswerverifiedShow Answer

The major vein that delivers blood from the lungs to the heart is the

Correct AnswerverifiedShow Answer

The human circulatory system transports blood in a one-directional circuit throughout the body.

Correct AnswerverifiedShow Answer

Which of the following is an artery that supplies blood to the heart muscle?

Correct AnswerverifiedShow Answer

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In the systemic circulation,__ is expelled from the blood and is picked up.

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Blood in the pulmonary artery would have _ oxygen and _ carbon dioxide than blood in the pulmonary vein.

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The medulla has receptors that monitor H⁺ concentrations in the blood.

Correct Answer
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The _ nervous system controls the contraction of __ in the wall of the bronchioles,thereby adjusting airflow in response to metabolic demands.

Correct Answer
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At the capillaries,_ leaves red blood cells and ___ enters the circulation.

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