Respiratory System

Question 1

Why do we need a respiratory system?

Answer 1

Our bodies are too large to rely on simple diffusion of gases from the atmosphere to the tissues.

Question 2

Functions of the respiratory system x5 ?

Answer 2

Provides extensive surface area for gas exchange of oxygen (O2) and carbon dioxide (CO2)

Helps regulate blood hydrogen ion (H+) concentration (pH)

Defence against inhaled microbes/particles

Forms speech sounds (Phonation)

Detection of olfactory stimuli

Question 3

How can the respiratory system be organised?

Answer 3

by function or by structure

Question 4

How is the respiratory system organised structurally?

Answer 4

The upper and lower respiratory systems

Question 5

What makes up the upper respiratory system?

Answer 5

nose, nasal cavity, pharynx and associated structures

Question 6

what makes the lower respiratory system?

Answer 6

larynx, trachea, bronchi and lungs