Chapter 22 study guide quesitons

Question 1

which organ descends from the larynx through the neck into the mediastinum and terminates at the primary bronchi?

Answer 1

the Trachea

Question 2

What type of tissue lines the trachea?

Answer 2

Ciliated pseudostratified epithelium

Question 3

What zone consists of right and left primary bronchi that enter each lung and diverge into secondary bronchi

Answer 3

Conducting zone

Question 4

What zone begins as the terminal bronchioles feeding into respiratory bonchiole that terminate in alveolar ducts within clusters of alveolar sacs, which consist of alveoli

Answer 4

Respiratory zone.

Question 5

What type of tissue does the respiratory membrane consist of

Answer 5

single layer of squamous epithelium

Question 6

What covers the surface of alveoli

Answer 6

web of pulmonary capillaries

Question 7

What two types of capillaries form the respiratory membrane?

Answer 7

endothelium and alveolar which exchange gases

Question 8

What type of cells secrete surfactant

Answer 8

type II alveolar cells

Question 9

Alveoli are surrounded by elastic fibers, open alveolar pores and have______

Answer 9

alveolar macrophages

Question 10

The multilobed lung occpies its own Cavity called?

Answer 10

Pleural Cavity

Question 11

A double layered serosa in the respiratory system is called?

Answer 11

pleura

Question 12

This pleura covers the the thoracic wall, superior face of diaphragm and continues around the heart.

Answer 12

The parietal pleura

Question 13

This layer covers the external lung surface, following its contours and fissures.

Answer 13

the Visceral pleura.

Question 14

What lubricates the space in between the two pleura?

Answer 14

Pleural Fluid

Question 15

The pleural Fluid allows for what?

Answer 15

Lubrication and friction free movement

Question 16

What does a negative pressure indicate?

Answer 16

that the respiratory pressure is lower than the atmospheric pressure

Question 17

What is the pressure in the alvoeli called?

Answer 17

Intrapulmonary pressure which rises and falls during respirations.

Question 18

What is the pressure that is always eventually equal to the atmospheric pressure

Answer 18

intrapulmonary pressure

Question 19

What is the pressure in the pleural cavity?

Answer 19

intrapleural pressure

Question 20

Why must there always be a negative pressure in the intrapleural cavity?

Answer 20

the recoil force and surface tension of alveolar fluid in lungs versus the natural tendency of the chest wall to pull outward.

Question 21

What is the Transpulmonary pressure?

Answer 21

the difference between intrapulmonary and intrapleural pressure.