Gaseous Exchange

Question 1

Define the diaphragm muscle and it’s function

Answer 1

The diaphragm muscle is a thin sheet-like muscle that separates the thoracic cavity from the abdominal cavity

Question 2

What is the function of the rib-cage?

Answer 2

it protects the lungs

Question 3

Define the pleura and its function

Answer 3

the pleura is a double membrane that covers the outside of the lungs and the inside of the thoracic cavity

Question 4

What is the function of the film of fluid between the two layers of pleura?

Answer 4

The fluid serves to reduce friction during breathing movements

Question 5

What is the function of the arterioles?

Answer 5

To give rise to capillaries around the walls of the alveoli