Respiratory System DOL 2/3-4

Why does the left lung only have 2 lobes?

• Because it makes room for the heart

• Because it needs more space to take in oxygen

• It is a defect

• Both lungs have 3 lobes, not 2

The respiratory system begins here at the __________ and __________.

• nose
• mouth
• heart

• trachea

Trachea - A hollow tube (__________) that connects the larynx to the right and left bronchus.

Bronchus – the two major air passageways leading from the trachea to the __________.

Where is the right lung?

The yellow structures on the right side of this picture represent ________. This is where the main exchange of glasses takes place.

• diaphragm

• pharynx

• alveoli

• trachea