Respiratory System

Question 1

What are the 4 major functions of the respiratory system?

Answer 1

• Delivers oxygen from the atmosphere to the lungs
• Gaseous exchange
• Create speech
  Facilitates sense of smell

Question 2

What are the three sections of the respiratory system?

Answer 2

1. Air passages
2. Lungs
3. Diaphragm

Question 3

What is gaseous exchange?

Answer 3

Occurs within the lungs- diffuses oxygen to enter and carbon dioxide to leave the blood and remove carbon dioxide from lungs and into the atmosphere

Question 4

What is the passage of air?

Answer 4

Nasal cavity –> Pharynx –> Larynx (voice box) –> Trachea –> Bronchi –> Bronchioles –> Alveoli

Question 5

What are the bronchi?

Answer 5

Two branches are a passageway for air to pass through, it divides into smaller branches, bronchioles

Question 6

Where does gaseous exchange occur?

Answer 6

In the alveoli

Question 7

What is the alveoli

Answer 7

Tiny air sacs, resemble a bunch of grapes.

Question 8

What are two thing that allow quick and efficient gas exchange in the alveoli?

Answer 8

Walls thin and and surrounded by a network of capillaries

Question 9

What is the diaphragm?

Answer 9

A dome shaped and involuntary smooth muscle

Question 10

What are the two movements in breathing?

Answer 10

Inspiration and expiration