Question 1

Gas exchange between air and circulating blood takes place within________

Accepted Answer

The answer of Gas exchange between air and circulating blood...

Question 2

Pulmonary ventilation refers to the
A) movement of dissolved gases from the interstitial space to the cells.
B) movement of dissolved gases from the alveoli to the blood.
C) movement of dissolved gases from the blood to the interstitial space.
D) utilization of oxygen.
E) movement of air into and out of the lungs.

Accepted Answer

Pulmonary ventilation is the process of moving air into and out of the lungs, which is essential for gas exchange to occur in the alveoli.

Question 3

Which of the following is greater? A) the partial pressure of oxygen in atmospheric air at the top of Mt. Everest B) the partial pressure of oxygen in atmospheric air is constant C) the partial pressure of oxygen in atmospheric air at sea level

Accepted Answer

The partial pressure of oxygen decreases with altitude, so it is greater at sea level compared to the top of Mt. Everest.

Question 4

The movement of chloride ions into the RBCs in exchange for bicarbonate ions is known as the______ .

Accepted Answer

The answer of The movement of chloride ions into the...

Question 5

The entire array of protective mechanisms in the respiratory system is called the______

Accepted Answer

The answer of The entire array of protective mechanisms in...

Question 6

Respiratory function deteriorates as a result of pneumonia because inflammation
A) causes fluids to leak into the alveoli.
B) causes respiratory bronchioles to swell and constrict.
C) increases minute volume.
D) A and B only
E) A, B, and C

Accepted Answer

Pneumonia causes inflammation that leads to fluid leakage into the alveoli (A) and swelling and constriction of the respiratory bronchioles (B), impairing gas exchange. Increased minute volume (C) is not a direct result of pneumonia.

Question 7

The ______of the lungs is an indication of their expandability, how easily the lungs expand and contract.

Accepted Answer

The answer of The ______of the lungs is an indication...

Question 8

The following is a list of some airways. 1. secondary bronchus
2) bronchioles
3) alveolar ducts
4) primary bronchus
5) respiratory bronchiole
6) alveoli
7) terminal bronchiole
The order in which air passes through is
A) 1, 4, 2, 7, 5, 3, 6.
B) 2, 4, 1, 7, 5, 3, 6.
C) 4, 1, 2, 5, 7, 3, 6.
D) 4, 1, 2, 7, 5, 3, 6.
E) 1, 4, 2, 5, 7, 3, 6.

Accepted Answer

Air passes through the primary bronchus, secondary bronchus, bronchioles, terminal bronchiole, respiratory bronchiole, alveolar ducts, and finally the alveoli.

Question 9

The technical term for quiet breathing is ______

Accepted Answer

The answer of The technical term for quiet breathing is...

Question 10

Ventilation performed by contraction of the external intercostals muscle is known as_______breathing.

Accepted Answer

The answer of Ventilation performed by contraction of the external...

Question 11

Internal respiration refers to exchange of oxygen and carbon dioxide between the_____and the ______.

Accepted Answer

The answer of Internal respiration refers to exchange of oxygen...

Question 12

Alveolar ventilation refers to the
A) movement of air into and out of the alveoli.
B) utilization of oxygen by alveolar cells to support metabolism.
C) movement of dissolved gases from the alveoli to the blood.
D) movement of dissolved gases from the blood to the alveoli.
E) movement of air into and out of the lungs.

Accepted Answer

Alveolar ventilation specifically refers to the movement of air into and out of the alveoli, which is crucial for gas exchange.

Question 13

Use of the accessory respiratory muscles is characteristic of forced breathing or_______

Accepted Answer

The answer of Use of the accessory respiratory muscles is...

Question 14

The beating of the cilia of the respiratory passages in the direction of the pharynx forms an) ________ .

Accepted Answer

The answer of The beating of the cilia of the...

Question 15

The volume of air moved in a single respiratory cycle is termed________

Accepted Answer

The answer of The volume of air moved in a...

Question 16

The technique of _________provides air to a person who has stopped breathing.

Accepted Answer

The answer of The technique of _________provides air to a...

Question 17

The______ extends from the sixth cervical vertebra to the fifth thoracic vertebra.

Accepted Answer

The answer of The______ extends from the sixth cervical vertebra...

Question 18

Which statement about the chloride shift is false? A) is driven by a rise in PCO₂ B) involves a movement of bicarbonate ions into the plasma C) depends on the chloride- bicarbonate countertransporter D) causes RBCs to swell E) involves a movement of chloride ion into RBCs

Accepted Answer

The chloride shift does not cause RBCs to swell; it involves the exchange of bicarbonate and chloride ions across the red blood cell membrane, maintaining osmotic balance without causing swelling.

Question 19

When the inspiratory muscles relax, the rib cage returns to its original position as a result of_____ .

Accepted Answer

The answer of When the inspiratory muscles relax, the rib...

Question 20

The normal respiratory rate of a resting adult ranges from_______ breaths each minute, or roughly one for every four heartbeats.

Accepted Answer

The answer of The normal respiratory rate of a resting...

Quiz 21: The Respiratory System

Gas exchange between air and circulating blood takes place within________

Pulmonary ventilation refers to the

Which of the following is greater?