Chapter 2: Respiration 🫁

Question 1

Breathing Mechanism 🧘

Answer 1

Nostrils > Nasal Cavity > Pharynx > Larynx > Trachea > Bronchus > Bronchiole > Alveolus

Question 2

What happens when you inhale? ⤵️

Answer 2

Intercostal muscles contract
Rib cage goes upwards and outwards
Diaphragm muscles contract making it move downwards and flatten
Thoracic cavity increases
Air pressure decreases

Question 3

What happens when you exhale? ⤴️

Answer 3

Intercostal muscles relax
Rib cage goes downwards and inwards
Diaphragm muscles relax making it move upwards and curve
Thoracic cavity decreases
Air pressure increases