Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

If you wanted to read more about protections for the body,and you came a cross a description of cellular components of blood that destroy foreign substances,you would be reading about

Accepted Answer

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

Question 3

If you were given a piece of a cow's heart and told that it was one of the thicker-walled chambers,you would know that you had an atrium.

Accepted Answer

A) True 
 B)False

Question 4

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is that

Accepted Answer

A)  we use carbon dioxide to make glucose.
B)  we produce carbon dioxide as a byproduct of aerobic respiration.
C)  we produce carbon dioxide as a byproduct of transmission of nerve impulses across synapses.
D)  carbon dioxide is a byproduct of photosynthesis.
E)  carbon dioxide dissolves better in blood than does oxygen.F) B) and D)
G) A) and E)

Question 5

The signal for the heart to contract begins at the sinoatrial node.

Accepted Answer

A) True 
 B)False

Question 6

The widening of blood vessels is

Accepted Answer

A)  vasoconstriction.
B)  cardioconstriction.
C)  vasodilation.
D)  cardiodilation.
E)  All answers are correct.F) A) and B)
G) A) and C)

Question 7

Since hemoglobin has a greater affinity for carbon monoxide than for oxygen,what would be a symptom of carbon monoxide poisoning?

Accepted Answer

A)  hyperactivity
B)  increased blood pH
C)  decreased exhalation of oxygen
D)  increased heart rate
E)  decreased ATP productionF) D) and E)
G) B) and D)

Question 8

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

Question 9

Which of the following is not a main function of the upper respiratory system?

Accepted Answer

A)  sense of smell
B)  gas exchange between the lungs and the atmosphere
C)  production of sounds
D)  transport of oxygen to the cells of the body
E)  maintaining blood pH homeostasisF) A) and C)
G) B) and D)

Question 10

Each day the human heart sends a volume of blood equal to about _____________ through the body.

Accepted Answer

A)  50,000 liters
B)  1,000 liters
C)  7,000 liters
D)  2,000 liters
E)  5,000 litersF) A) and E)
G) A) and C)

Question 11

Why would exercise help your blood circulation in your legs?

Accepted Answer

A)  As muscles contract they squeeze blood through the veins and increased heart rate pushes more blood into the legs.
B)  Increased heart rate pushes more blood into the legs only.
C)  As muscles contract they squeeze blood through the veins only.
D)  Exercise increases the amount of red blood cells only.
E)  Exercise increases the amount of red blood cells and increased heart rate pushes more blood into the legs.F) B) and C)
G) All of the above

Question 12

Blood pressure is

Accepted Answer

A)  the force that interstitial fluid exerts on the walls of the arteries.
B)  the force that blood exerts on the walls of the ventricles of the heart.
C)  the force that blood exerts on the walls of the arteries.
D)  the force that interstitial fluid exerts on the walls of the veins.
E)  the force that blood exerts on the walls of the veins.F) A) and B)
G) A) and C)

Question 13

A valve replacement would prevent which of the following?

Accepted Answer

A)  flow of blood from the right atrium to right ventricle
B)  flow of blood from the left ventricle to the aorta
C)  flow of blood from the inferior vena cava to the right atrium
D)  flow of blood from the right ventricle to right atrium
E)  flow of blood from the right ventricle to the pulmonary arteryF) A) and B)
G) B) and C)

Question 14

Vertebrates with a three-chambered heart include

Accepted Answer

A)  fish.
B)  amphibians.
C)  birds.
D)  mammals.
E)  annelids.F) C) and D)
G) A) and C)

Question 15

The scientific name of the "windpipe" is the

Accepted Answer

A)  larynx.
B)  pharynx.
C)  vocal cords.
D)  esophagus.
E)  trachea.F) B) and C)
G) B) and D)

Question 16

If you were dealing with a patient who repeatedly had trouble with excessive bleeding,you might consider giving the patient a transfusion containing

Accepted Answer

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

Question 17

A heartbeat begins in the

Accepted Answer

A)  atrioventricular valve.
B)  atrioventricular node.
C)  sinoatrial node.
D)  right ventricle.
E)  left atrium.F) A) and C)
G) A) and D)

Question 18

Which main tissue type of the circulatory system enables diffusion across walls of capillaries?

Accepted Answer

A)  connective
B)  nervous
C)  muscle
D)  vascular
E)  epithelialF) A) and E)
G) A) and B)

Question 19

In which of the following organisms does oxygenated blood leave the heart?

Accepted Answer

A)  fishes only
B)  mammals only
C)  birds only
D)  all vertebrates
E)  birds and mammals onlyF) C) and D)
G) B) and D)

Question 20

If asked to label a large blood vessel found mostly below the diaphragm,you would label it as the

Accepted Answer

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

Exam 27: The Circulatory and Respiratorysystems

If you were given a piece of a cow's heart and told that it was one of the thicker-walled chambers,you would know that you had an atrium.

Correct AnswerverifiedShow Answer

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is that

Correct AnswerverifiedShow Answer

Blood pressure is

Correct AnswerverifiedShow Answer

The signal for the heart to contract begins at the sinoatrial node.

Correct AnswerverifiedShow Answer

The scientific name of the "windpipe" is the

Correct AnswerverifiedShow Answer

Which main tissue type of the circulatory system enables diffusion across walls of capillaries?

Correct AnswerverifiedShow Answer

Vertebrates with a three-chambered heart include

Correct AnswerverifiedShow Answer

If you were dealing with a patient who repeatedly had trouble with excessive bleeding,you might consider giving the patient a transfusion containing

Correct AnswerverifiedShow Answer

If you wanted to read more about protections for the body,and you came a cross a description of cellular components of blood that destroy foreign substances,you would be reading about

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Since hemoglobin has a greater affinity for carbon monoxide than for oxygen,what would be a symptom of carbon monoxide poisoning?

Correct AnswerverifiedShow Answer

Why would exercise help your blood circulation in your legs?

Correct AnswerverifiedShow Answer

In which of the following organisms does oxygenated blood leave the heart?

Correct AnswerverifiedShow Answer

If asked to label a large blood vessel found mostly below the diaphragm,you would label it as the

Correct AnswerverifiedShow Answer

Which of the following is not a main function of the upper respiratory system?

Correct AnswerverifiedShow Answer

A valve replacement would prevent which of the following?

Correct AnswerverifiedShow Answer

Each day the human heart sends a volume of blood equal to about _____________ through the body.

Correct AnswerverifiedShow Answer

The widening of blood vessels is

Correct AnswerverifiedShow Answer

A heartbeat begins in the

Correct AnswerverifiedShow Answer

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

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

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

Correct Answer
verified