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Flashcards in chapter 22 Deck (19):
1

Which of the following is NOT involved in respiration?

external ventilation

2

The respiratory zone is composed of the trachea and the paranasal sinuses.

False

3

Which of the following are the hairs within the nasal cavity that filter coarse particles, such as pollen and dust, from inspired air?

vibrissae

4

_________ is the inflammation of the nasal mucosa accompanied by excessive mucus production, nasal congestion, and postnasal drip.

Rhinitis

5

Which of the following lists the regions of the pharynx from superior to inferior?

nasopharynx, oropharynx, laryngopharynx

6

The __________ is covered by a mucosa containing taste buds and keeps food out of the lower respiratory passages.

epiglottis

7

The bronchial, or respiratory, tree branches approximately 23 times within the lungs.

true

8

The __________ are the main site of gas exchange within the lungs.

alveoli

9

The two lungs differ in shape and size.

True

10

The __________ is the elastic connective tissue found within the lungs.

stroma

11

__________, or lung collapse, is a homeostatic imbalance that occurs when a bronchiole becomes plugged.

Atelectasis

12

Which of the following occurs during infant respiratory distress syndrome (IRDS)?

The baby is unable to keep his or her alveoli inflated between breaths because of a lack of surfactant.

13

Henry's law states that the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture.

false

14

Henry's law states that when a gas is in contact with a liquid, that gas will dissolve in the liquid in proportion to its partial pressure.

true

15

Which form of hypoxia occurs when body cells are unable to use O2 even though adequate amounts are delivered? (This type of hypoxia is usually the consequence of metabolic poisons, such as cyanide.)

histotoxic hypoxia

16

Which form of CO2 transport accounts for the greatest amount of CO2 transported in blood?

as bicarbonate ions in plasma

17

The increase in ventilation in response to metabolic needs is called __________.

hyperpnea

18

Emphysema is distinguished by permanent enlargement of the alveoli and loss of lung elasticity.

true

19

Lung cancer is among the easiest forms of cancer to successfully treat and cure.

false