Question 1

The process by which urine is released from the bladder is called

Accepted Answer

A)  filtration. 
B)  excretion. 
C)  micturition. 
D)  nephronation. 
A)  filtration. 
B)  excretion. 
C)  micturition. 
D)  nephronation.

Question 2

The brain stem regulates breathing and will signal the diaphragm to contract in response to

Accepted Answer

A)  levels of oxygen in the blood. 
B)  levels of carbon dioxide in the blood. 
C)  levels of carbon monoxide in the blood. 
D)  levels of hemoglobin in the blood. 
A)  levels of oxygen in the blood. 
B)  levels of carbon dioxide in the blood. 
C)  levels of carbon monoxide in the blood. 
D)  levels of hemoglobin in the blood.

Question 3

The emerging and scientific consensus about "secondhand smoke" supports the conclusion that, while airborne particles emitted by the lit end of cigarettes pose a health risk to those who are exposed, the gases released by a cigarette are relatively harmless.

Accepted Answer

A) True 
 B)False

Question 4

By which process is the majority of water that's filtered reabsorbed in the nephrons during urine formation?

Accepted Answer

A)  active transport 
B)  exocytosis 
C)  osmosis 
D)  pinocytosis 
A)  active transport 
B)  exocytosis 
C)  osmosis 
D)  pinocytosis

Question 5

-Refer to the figure to answer the following question: In which of the labeled regions would blood pressure be the highest?

Accepted Answer

A)  Region 5 
B)  Region 6 
C)  Region 7 
D)  Region 8 
A)  Region 5 
B)  Region 6 
C)  Region 7 
D)  Region 8

Question 6

The respiratory surface where gas exchange occurs is in the

Accepted Answer

A)  trachea. 
B)  bronchioles. 
C)  pharynx. 
D)  alveoli. 
A)  trachea. 
B)  bronchioles. 
C)  pharynx. 
D)  alveoli.

Question 7

A small mass of specialized muscle on the back wall of the right atrium, also known as the pacemaker, is medically known as what?

Accepted Answer

A)  atrioventricular node 
B)  cardiopulmonary node 
C)  bundle of His 
D)  sinoatrial node 
A)  atrioventricular node 
B)  cardiopulmonary node 
C)  bundle of His 
D)  sinoatrial node

Question 8

What is the advantage of having grape-like clusters called alveoli as part of the respiratory system?

Accepted Answer

A)  Alveoli allow for an increase in surface area, which maximizes gas exchange. 
B)  Alveoli are circular in structure, which is ideal for maximal gas exchange. 
C)  Because alveoli are shaped like grapes, this allows for thinner walls, thereby facilitating gas exchange in the lungs. 
D)  The shape of alveoli allows capillaries to be in closer proximity to gases, which facilitates gas exchange. 
A)  Alveoli allow for an increase in surface area, which maximizes gas exchange. 
B)  Alveoli are circular in structure, which is ideal for maximal gas exchange. 
C)  Because alveoli are shaped like grapes, this allows for thinner walls, thereby facilitating gas exchange in the lungs. 
D)  The shape of alveoli allows capillaries to be in closer proximity to gases, which facilitates gas exchange.

Question 9

Most of the oxygen in the blood is

Accepted Answer

A)  bound to hemoglobin. 
B)  in white blood cells. 
C)  combined with carbon dioxide. 
D)  dissolved in the plasma. 
A)  bound to hemoglobin. 
B)  in white blood cells. 
C)  combined with carbon dioxide. 
D)  dissolved in the plasma.

Question 10

What is the physiological cause of a heart attack?

Accepted Answer

A)  rupture of coronary arteries 
B)  a blood clot moving through the heart 
C)  a blood clot lodging in a blood vessel supplying the heart 
D)  scar tissue in the heart muscle 
A)  rupture of coronary arteries 
B)  a blood clot moving through the heart 
C)  a blood clot lodging in a blood vessel supplying the heart 
D)  scar tissue in the heart muscle

Question 11

Which chamber of the heart receives the deoxygenated blood from the systemic system first?

Accepted Answer

A)  left ventricle 
B)  left atrium 
C)  right atrium 
D)  right ventricle 
A)  left ventricle 
B)  left atrium 
C)  right atrium 
D)  right ventricle

Question 12

In the alveoli and lung capillaries, carbon dioxide and oxygen are exchanged by means of

Accepted Answer

A)  endocytosis. 
B)  osmosis. 
C)  diffusion. 
D)  phagocytosis. 
A)  endocytosis. 
B)  osmosis. 
C)  diffusion. 
D)  phagocytosis.

Question 13

Which region of the circulatory system allows passage of nutrients and other small molecules to service nearby tissues?

Accepted Answer

A)  veins 
B)  arteries 
C)  capillaries 
D)  aterioles 
A)  veins 
B)  arteries 
C)  capillaries 
D)  aterioles

Question 14

In which of these blood vessels do the exchange of gases and other materials occur?

Accepted Answer

A)  arteries 
B)  veins 
C)  capillaries 
D)  right atrium 
A)  arteries 
B)  veins 
C)  capillaries 
D)  right atrium

Question 15

During exhalation, when the diaphragm relaxes and the volume of the chest cavity decreases, air pressure ________ inside the lungs.

Accepted Answer

A)  increases 
B)  decreases 
C)  decreases, then increases 
D)  is unchanged 
A)  increases 
B)  decreases 
C)  decreases, then increases 
D)  is unchanged

Question 16

Which of the following correctly traces a drop of blood through the vascular system?

Accepted Answer

A)  right ventricle, lungs, left atrium, left ventricle, body, right atrium 
B)  left ventricle, lungs, right atrium, right ventricle, body, left atrium 
C)  right ventricle, lungs, right atrium, left ventricle, body, left atrium 
D)  left ventricle, lungs, left atrium, right ventricle, body, right atrium 
A)  right ventricle, lungs, left atrium, left ventricle, body, right atrium 
B)  left ventricle, lungs, right atrium, right ventricle, body, left atrium 
C)  right ventricle, lungs, right atrium, left ventricle, body, left atrium 
D)  left ventricle, lungs, left atrium, right ventricle, body, right atrium

Question 17

About how many years after quitting smoking does it take for the risk of heart disease and death to return to the levels similar to those seen in people who never smoked?

Accepted Answer

A)  1 
B)  5 
C)  10 
D)  15 
A)  1 
B)  5 
C)  10 
D)  15

Question 18

________ is the most abundant gas in environmental tobacco smoke, and the effects of exposure to elevated levels of this gas along with other health problems can lead to serious consequences.

Accepted Answer

Carbon mon

Question 19

In the human cardiovascular system, what's the difference between the pulmonary circuit and the systemic circuit?

Accepted Answer

The pulmonary circuit transpor

Question 20

Which of the following best describes an artery?

Accepted Answer

A)  Arteries carry blood away from the heart. 
B)  Arteries carry oxygenated blood. 
C)  Arteries contain valves. 
D)  Arteries have thinner walls than veins. 
A)  Arteries carry blood away from the heart. 
B)  Arteries carry oxygenated blood. 
C)  Arteries contain valves. 
D)  Arteries have thinner walls than veins.

Exam 18: Clearing the Air: Respiratory Cardiovascular and Excretory Systems

The process by which urine is released from the bladder is called

The brain stem regulates breathing and will signal the diaphragm to contract in response to

The emerging and scientific consensus about "secondhand smoke" supports the conclusion that, while airborne particles emitted by the lit end of cigarettes pose a health risk to those who are exposed, the gases released by a cigarette are relatively harmless.

By which process is the majority of water that's filtered reabsorbed in the nephrons during urine formation?

-Refer to the figure to answer the following question: In which of the labeled regions would blood pressure be the highest?

The respiratory surface where gas exchange occurs is in the

A small mass of specialized muscle on the back wall of the right atrium, also known as the pacemaker, is medically known as what?

What is the advantage of having grape-like clusters called alveoli as part of the respiratory system?

Most of the oxygen in the blood is

What is the physiological cause of a heart attack?

Which chamber of the heart receives the deoxygenated blood from the systemic system first?

In the alveoli and lung capillaries, carbon dioxide and oxygen are exchanged by means of

Which region of the circulatory system allows passage of nutrients and other small molecules to service nearby tissues?

In which of these blood vessels do the exchange of gases and other materials occur?

During exhalation, when the diaphragm relaxes and the volume of the chest cavity decreases, air pressure ________ inside the lungs.

Which of the following correctly traces a drop of blood through the vascular system?

About how many years after quitting smoking does it take for the risk of heart disease and death to return to the levels similar to those seen in people who never smoked?

________ is the most abundant gas in environmental tobacco smoke, and the effects of exposure to elevated levels of this gas along with other health problems can lead to serious consequences.

In the human cardiovascular system, what's the difference between the pulmonary circuit and the systemic circuit?

Which of the following best describes an artery?

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