Respitory System

Question 1

Pathway of air starting from the nose

Answer 1

nostrils, nasal cavity, pharynx, larynx, glottis, trachea, bronchi, bronchioles, alveoli

Question 2

What is the difference between humans and birds

Answer 2

air sacs having no diaphragm

Question 3

What happens to carbon dioxide when it is absorbed

Answer 3

Carbon dioxide dissolves in water to form carbonic acid. The carbonic acid molecule disassociates to form the hydronium and bicarbonate ions. Hydronium ions are buffered by hemoglobin in the red blood cells while the bicarbonate ions move into the blood plasma.

Question 4

The fluid-filled space between the two layers of the pleura (membrane) surrounding the lungs, facilitating smooth movement.

Answer 4

Pleural cavity

Question 5

Two membranes of the lungs, one attached to the inside of the chest wall and the other attached to the surface of the lungs

Answer 5

parietal pleura and visceral pleura