Question 1

What might be the effect of mitral valve prolapse, a disease in which the valve between the left ventricle and left atrium doesn't close completely?

Accepted Answer

As the left ventricle contract...

Question 2

Beta blockers are a type of drug that slows down heart rate. What role might they have during, or even after, a myocardial infarction (heart attack)?

Accepted Answer

They ensure that the atria and...

Question 3

Why do we need to breathe, but flatworms don't?

Accepted Answer

The cells in flatworms are close enough ...

Question 4

Match the example parts of the heart with the correct information.
-Right ventricle

Accepted Answer

A)   Chamber that receives blood from the lungs
B)   Chamber that pumps blood to the lungs
C)   Blood vessel that carries blood to the lungs
D)   Chamber that receives blood from the body
E)   Blood vessel that carries blood from the heart to the body F)  Blood vessel that brings blood into the right atriumG)  Chamber that pumps blood into the aorta

Question 5

To which part of an artery do LDLs attach ?

Accepted Answer

A)   connective tissue
B)   smooth muscle
C)   epithelium
D)   skeletal muscle

Question 6

When you hold your breath, less carbon dioxide diffuses into the alveoli from the pulmonary capillaries.

Accepted Answer

A) True 
 B)False

Question 7

The human circulatory system is really three circulatory systems, all powered by one heart.

Accepted Answer

A) True 
 B)False  False

Question 8

All the work of pumping blood in humans is done by the heart.

Accepted Answer

A) True 
 B)False

Question 9

Match the example parts of the heart with the correct information.
-Left atrium

Accepted Answer

A)   Chamber that receives blood from the lungs
B)   Chamber that pumps blood to the lungs
C)   Blood vessel that carries blood to the lungs
D)   Chamber that receives blood from the body
E)   Blood vessel that carries blood from the heart to the body F)  Blood vessel that brings blood into the right atriumG)  Chamber that pumps blood into the aorta

Question 10

Some athletes illegally use the hormone EPO to boost the number of red blood cells. What medical problem can this cause?

Accepted Answer

It increas...

Question 11

Label the critical blood vessels of the heart.

Accepted Answer

The answer of Label the critical blood vessels of the...

Question 12

Match the example parts of the heart with the correct information.
-Aorta

Accepted Answer

A)   Chamber that receives blood from the lungs
B)   Chamber that pumps blood to the lungs
C)   Blood vessel that carries blood to the lungs
D)   Chamber that receives blood from the body
E)   Blood vessel that carries blood from the heart to the bodyF)  Blood vessel that brings blood into the right atriumG)  Chamber that pumps blood into the aorta E

Question 13

Earthworms need a source of oxygen to perform cellular respiration. The problem is that they lack lungs, so the oxygen they need is obtained by diffusion through their skin. Why do earthworms need to keep their skin moist?

Accepted Answer

A)   The skin has a good blood supply, and water diffuses out of the blood.
B)   To conserve water.
C)   Oxygen must dissolve in water before it diffuses into the blood.
D)   The moisture on the skin increases the surface area and allows sufficient diffusion.

Question 14

Match the example parts of the heart with the correct information.
-Right atrium

Accepted Answer

A)   Chamber that receives blood from the lungs
B)   Chamber that pumps blood to the lungs
C)   Blood vessel that carries blood to the lungs
D)   Chamber that receives blood from the body
E)   Blood vessel that carries blood from the heart to the body F)  Blood vessel that brings blood into the right atriumG)  Chamber that pumps blood into the aorta

Question 15

Which of the following may be found in blood plasma?

Accepted Answer

A)   sodium
B)   water
C)   glucose
D)   all of the above

Question 16

Match the example parts of the heart with the correct information.
-Pulmonary artery

Accepted Answer

A)   Chamber that receives blood from the lungs
B)   Chamber that pumps blood to the lungs
C)   Blood vessel that carries blood to the lungs
D)   Chamber that receives blood from the body
E)   Blood vessel that carries blood from the heart to the bodyF)  Blood vessel that brings blood into the right atriumG)  Chamber that pumps blood into the aorta

Question 17

Blood vessels are organs.

Accepted Answer

A) True 
 B)False  True

Question 18

The type of muscle found in the heart is smooth muscle.

Accepted Answer

A) True 
 B)False

Question 19

"Hot or quasi-warm-blooded fish, such as bluefin tuna, keep a higher temperature difference between their body and surrounding water than cold fish because:

Accepted Answer

A)   they use a countercurrent heat exchanger system of veins and arteries.
B)   they use shivering to create more heat.
C)   they have large dorsal aorta, which keeps them warmer.
D)   they have many brown fat tissues.

Question 20

The movement of gases between the alveoli and the blood is:

Accepted Answer

A)   pulmonary ventilation.
B)   cellular respiration.
C)   active transport.
D)   diffusion.

Exam 29: Blood and Breath

What might be the effect of mitral valve prolapse, a disease in which the valve between the left ventricle and left atrium doesn't close completely?

Correct AnswerverifiedAs the left ventricle contract...View AnswerShow Answer

Beta blockers are a type of drug that slows down heart rate. What role might they have during, or even after, a myocardial infarction (heart attack)?

Correct AnswerverifiedThey ensure that the atria and...View AnswerShow Answer

Why do we need to breathe, but flatworms don't?

Correct AnswerverifiedThe cells in flatworms are close enough ...View AnswerShow Answer

Match the example parts of the heart with the correct information. -Right ventricle

Correct AnswerverifiedShow Answer

To which part of an artery do LDLs attach ?

Correct AnswerverifiedShow Answer

When you hold your breath, less carbon dioxide diffuses into the alveoli from the pulmonary capillaries.

Correct AnswerverifiedShow Answer

The human circulatory system is really three circulatory systems, all powered by one heart.

Correct AnswerverifiedFalse

All the work of pumping blood in humans is done by the heart.

Correct AnswerverifiedShow Answer

Match the example parts of the heart with the correct information. -Left atrium

Correct AnswerverifiedShow Answer

Some athletes illegally use the hormone EPO to boost the number of red blood cells. What medical problem can this cause?

Correct AnswerverifiedIt increas...View AnswerShow Answer

Label the critical blood vessels of the heart.

Correct AnswerverifiedShow Answer

Match the example parts of the heart with the correct information. -Aorta

Correct AnswerverifiedE

Earthworms need a source of oxygen to perform cellular respiration. The problem is that they lack lungs, so the oxygen they need is obtained by diffusion through their skin. Why do earthworms need to keep their skin moist?

Correct AnswerverifiedShow Answer

Match the example parts of the heart with the correct information. -Right atrium

Correct AnswerverifiedShow Answer

Which of the following may be found in blood plasma?

Correct AnswerverifiedShow Answer

Match the example parts of the heart with the correct information. -Pulmonary artery

Correct AnswerverifiedShow Answer

Blood vessels are organs.

Correct AnswerverifiedTrue

The type of muscle found in the heart is smooth muscle.

Correct AnswerverifiedShow Answer

"Hot or quasi-warm-blooded fish, such as bluefin tuna, keep a higher temperature difference between their body and surrounding water than cold fish because:

Correct AnswerverifiedShow Answer

The movement of gases between the alveoli and the blood is:

Correct AnswerverifiedShow Answer

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As the left ventricle contract...
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They ensure that the atria and...
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The cells in flatworms are close enough ...
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False

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It increas...
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E

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True

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