Respiratory System

Question 1

Organs & Pathway

Answer 1

Nose/mouth: air enters
Pharynx: passage for air and food
Larynx: passage & produces sound
Trachea: connects larynx to bronchi
Bronchi: carries air into lungs
Bronchioles: distribute air in lungs
Alveoli: air sacs where gas exchange occurs
Lungs: allow O2 to enter the bloodstream & CO2 to leave

Question 2

Types of gasses involved & where gas exchange occurs

Answer 2

O2 & CO2 — Occurs in the alveoli

Question 3

Which 2 organs perform gas exchange?

Answer 3

Lungs & alveoli