Gross Anatomy 16 - Respiratory System

Question 1

Mention parts of the upper respiratory system

Answer 1

Nose, nasal cavities
Pharynx- NOL. Only N is exclusive part of respiratory system
Larynx
Upper trachea

Question 2

Mention parts of the lower respiratory system

Answer 2

Lower trachea - Carina
Bronchi
Bronchioles
Alveoli - O2/CO2 exchange
Lungs
Pleural membrane
Muscles of respiration

Question 3

Explain gas exchange

Answer 3

O2 —> alveoli —> pulmonary capillaries
CO2 —> reverse

Question 4

Which lung has 3 lobes and why

Answer 4

Right , heart position

Question 5

Mention pleural membranes

Answer 5

Parietal - outer
Intrapleural
Visceral

Question 6

Factors the oppose lung expansion

Answer 6

Elastic recoil - balloon
Surface tension - surfactants

Question 7

What allows the lung to expand

Answer 7

(-) intrapleural pressure

Question 8

What’re the steps of respiration

Answer 8

Ventilation - inhalation, exhalation (lung-atmosphere)
Exchange of O2/CO2 - tissue -blood
Transport of gases by the blood

Question 9

Boyle’s Law

Answer 9

Inverse relationship between pressure and volume

Question 10

What happens during inhalation

Answer 10

Muscles move up and out
Diaphragm descends
Thoracic volume increases
Intrapulmonic pressure decreases
Air moves in

Question 11

Pulmonary volumes. Difference between tidal volume and vital capacity

Answer 11

Tidal volume - inhalation + exhalation
Vital capacity - max exhalation after max inhalation