Oxygenation

Question 1

Ventilation

Answer 1

movement of air into and out of the lungs

Question 2

diffusion

Answer 2

movement of gases between air spaces in the lungs and bloodstream

Question 3

perfusion

Answer 3

movement of blood into and out of capillary beds of the lungs and into other tissues and organs

Question 4

how many lobes does the right lung have

Answer 4

3

Question 5

how many lobes for the left long have

Answer 5

2

Question 6

what is the diaphragm?

What is it involved in?

Answer 6

• Dome-shaped muscle separates the thoracic and abdominal cavities
• ventilation

Question 7

mediastinum

Answer 7

Space between the lungs, containing the heart, great vessels, and esophagus

Question 8

what is involved in the conducting airways

Answer 8

upper airway
larynx
lower airway

Question 9

what is in the lower airway

Answer 9

trachea
bronchi
terminal bronchioles

Question 10

what is in the upper airway

Answer 10

nasopharynx

oropharynx

Question 11

What does the upper airway do

Answer 11

warms and humidifies air

Question 12

what is the larynx

Answer 12

connects the upper and lower airways

Question 13

what do goblet cells do

Answer 13

produce mucus

Question 14

what are cilia

Answer 14

hairlike structures

Question 15

what do goblet cells and cilia do

Answer 15

help propel foreign material upward to enable it to be coughed up

Question 16

what are alveoli

Answer 16

primary gas exchange units

Question 17

what are type I alveolar cells

Answer 17

alveolar structure

Question 18

what do type II alveolar cells produce

Answer 18

surfactant which prevents lung collapse

Question 19

what do alveolar macrophages do

Answer 19

Ingest foreign material, and remove it through the lymphatic system.

Question 20

What are the function of pulmonary circulation functions

Answer 20

Facilitates gas exchange.
Delivers nutrients to lung tissues.
Acts as a blood reservoir for the left ventricle.
Serves as a filtering system that removes clots, air, + other debris from the circulation

Question 21

Which has lower pressure: pulmonary circulation or systemic circulation

Answer 21

pulmonary circulation

Question 22

What pressure does pulmonary circulation has

Answer 22

18 mm HG

Question 23

What pressure does systemic circulation

Answer 23

90 mm Hg

Question 24

what surrounds the the acinus

Answer 24

pulmonary capillaries

Question 25

What is the most important cause of pulmonary artery constriction

Answer 25

Low alveolar partial pressure of oxygen (Pao2)

Question 26

What Vasoconstriction caused by alveolar and pulmonary venous hypoxia

Answer 26

Hypoxic pulmonary vasoconstriction