Breathing And Exchange Of Gases

Question 1

How much Carbon Dioxide is removed by lungs 1. Per minute?
2. Per day?

Answer 1

1. 200mL/minute
2. 18L/ day

Question 2

Structures which are surrounded by incomplete cartilaginous rings.

Answer 2

Tracheae, primary, secondary and tertiary bronchi and initial Bronchioles

Question 3

A chronic disorder in which alveolar walls are damaged due to excessive cigarette smoking?

Answer 3

Emphysema

Question 4

Common passage for food and air is?

Answer 4

Pharynx