Question

The lungs are part of the _____ respiratory system a) upper
b) lower
c) middle
d) quarter

Answer 1

Answer:

• b) lower

Explanation:

The respiratory system involves the organs and functions that intervene in taking the oxygen, passing it to the blood, collecting the carbon dioxide and expeling it from the body.

The parts of the body that form the respiratory systems are:

Upper part:

• 1) nasal cavity and the mouth

• 2) pharynx

• 3) larynx

Lower part:

• 4) trachea

• 5) lungs

• 6) diaphragm

   

Inside the lungs are the bronchial tubes/bronchi, the bronchioles, alveoli, and capillaries.

When you inhale, the air collected by the nasal cavity and the mouth pass through the pharyng and larynx (upper part) to the trachea, which enters into the lungs.

In the lungs, the bronchioles drive the air to the alveoli which are surrounded by the capillaries. It is through the capilaries that oxygen and carbon dioxide can pass to and from the blood.