Respiratory System

Question 1

Respiration systeM

Answer 1

adapted to allow air to pass in and out of the body, and for efficient gas exchange tohappen system

Question 2

Structure of hte lungs

Answer 2

The trachea branches intro two bronchi

The bronchi branch into brionchioles

These bronchioles end In alveoli which are lined with capillaries for exchange

Question 3

Function of trachea

Answer 3

Rings of cartilage around the tracheas
—> support the airway and keep them open during the breathing
—> if they were not present the sides would collapse inside the tubes drops

Question 4

Inspiration

Answer 4

Decreases in pressure

Volume increases

Rib cage moves upwards and outwards

External intercostal muscle contract

Internal intercostal muscle relax

Diaphragm contract
Flat

Question 5

Expiration

Answer 5

Increase pressure

Volume decrease

Rib cage inwards and downwards
External intercostal relax

Intercostal contract

Diaphragm relax

Convex