Respiratory System

The main red highlighted area is known as the:

• bronchi

• nose

• mouth

• trachea

Normal respiration rates for an adult person at rest range from __ to __ breaths per minute.

• 8-10 bpm

• 12-20 bpm

• 22-30 bpm

• 0-6 bpm

These are tiny air sacs that exchange gases in the lungs:

• capillaries

• epiglottis

• diaphragm

• alveoli

What is the purpose of the respiratory system?

• takes in oxygen and releases nitrogen

• takes in carbon dioxide and releases oxygen

• takes in oxygen and releases carbon dioxide

• takes in nitrogen and releases oxygen

Hollow organ that allows you to talk and make sounds when air moves in and out.

• pharynx

• larynx

• trachea

• cilia

What are the smaller branches of the bronchi called?

• bronchioles

• alveoli

• larynx

• lungs

Which of the following is the function of alveoli in respiration?

• Helping the lungs to stay inflated

• Gaseous exchange

• Relaxation

 Tiny blood vessels that surround the alveoli are called

• alveoli

• capillaries

• bronchi

• bronchioles

What letter points to the lung?

• A

• B

• C

• D

What letter points to the trachea?

• C

• B

• E

• D