Week 8 Lecture Assignment

Question 1

Which zone of the respiratory system includes the organs and structures not directly involved in gas exchange?

Answer 1

The conducting zone

Question 2

Respiratory epithelium is composed of what type of tissue? ______________________________

Answer 2

Pseudostratified ciliated columnar epithelium.

Question 3

The largest laryngeal cartilage is the ____________________________.

Answer 3

thyroid cartilage

Question 4

The _________________ is formed by 16 to 20 stacked, C-shaped pieces of hyaline cartilage.

Answer 4

trachea

Question 5

An _______________________ is one of the many small, grape-like sacs that are attached to the alveolar ducts.

Answer 5

alveolus

Question 6

A type II alveolar cell secretes ___________________________.

Answer 6

pulmonary surfactant

Question 7

The sympathetic nervous system stimulates _______________________ in the bronchial tubes.

Answer 7

bronchodilation

Question 8

What is the space between the visceral and parietal layers called? ____________________________

Answer 8

pleural cavity

Question 9

The act of breathing is called _____________________________.

Answer 9

pulmonary ventilation

Question 10

__________________________ is the pressure of the air within the alveoli.

Answer 10

Intra-alveolar pressure or intrapulmonary pressure

Question 11

During quiet breathing, the diaphragm and what other group of muscles must contract? __________________________________

Answer 11

external intercostals

Question 12

The amount of air that normally enters the lungs during quiet breathing is called
_______________________________.

Answer 12

tidal volume

Question 13

A chronic disorder characterized by the cessation of breathing during sleep is called what?

Answer 13

sleep apnea

Question 14

What type of respiration occurs between the alveoli and the blood in the pulmonary capillaries? ___________________________

Answer 14

external respiration

Question 15

What type of respiration consists of gas exchange that occurs at the level of body tissues? ___________________________

Answer 15

internal respiration