Bio 224A Respiratory pt.1 and 2 quiz

Question 1

Normal adult tidal volume is approximately ____________ mL.

Answer 1

500

Question 2

Which region of the pharynx is located posterior to the oral cavity and superior to the larynx?

Answer 2

oropharynx

Question 3

What type of epithelium lines the trachea?

Answer 3

pseudostratified columnar ciliated

Question 4

All of the following are components of the upper respiratory tract EXCEPT the

Answer 4

trachea

Question 5

All of the following structures are involved in conducting air EXCEPT

Answer 5

Alveoli

Question 6

According to Boyle’s law, the volume of a gas is directly proportional to its pressure.

T or F

Answer 6

false

Question 7

Dust cells are

Answer 7

alveolar macrophages

Question 8

The exchange of oxygen and carbon dioxide is governed by _______________.

Answer 8

the partial pressures of the individual gases

Question 9

Which of the following events will most likely result in a pneumothorax?

Answer 9

Air enters the intrapleural space

Question 10

Which of the following structures is lined with simple squamous epithelium?

Answer 10

alveoli

Question 11

Carbon dioxide is transported from the tissues to the lungs primarily as ____
(Hint: spell the word out, do not write the chemical formula).

Answer 11

Bicarbonate

Question 12

Primary control of the diaphragm occurs through which nerve(s)?

Answer 12

phrenic nerve

Question 13

As a compensatory (or reflex) mechanism, a decreased in arterial PCO2 will result in

Answer 13

hypoventilation

Question 14

Hemoglobin can bind and carry CO2.

T or F

Answer 14

True

Question 15

The Hering-Breuer reflex __________________.

Answer 15

protects the lungs from damage due to over inflation

Question 16

The normal blood pH is 7.4. If the blood pH is 7.0, in which direction will the oxygen-hemoglobin dissociation curve shift?

Answer 16

To the right of baseline

Question 17

The central chemoreceptors which help trigger breathing are located where?

Answer 17

medulla oblongata

Question 18

Which of the following conditions will increase the affinity of hemoglobin for oxygen?

Answer 18

decreased H+

Question 19

Where is the primary respiratory control center located?

Answer 19

medulla oblongata

Question 20

Relating to the oxygen-hemoglobin dissociation curve, place the stimulus into their respective physiological response.

Shift the curve to the right

Answer 20

• Decrease pH
  -Increase temperature
  -Increase carbon dioxide
  -Increase 2,3, bisphosphoglycerate
  -Increase hydrogen ion concentration

Question 21

Relating to the oxygen-hemoglobin dissociation curve, place the stimulus into their respective physiological response.

Shift the curve to the left

Answer 21

-Decrease carbon dioxide
-Decrease 2,3 bisphosphoglycerate
-Decrease temperature
-Decrease hydrogen ion concentration
-Increase pH