Respiratory System Quiz

Tiny sacs at the end of the bronchioles:

• Bronchi

• Alveoli

• Lungs

T or F: One of the functions of the respiratory system is to release oxygen from cells by exhaling.

• True

• False

The trachea splits into two tubes leading to the lungs. These structures are called:

• Diaphragm

• Lungs

• Bronchioles

• Bronchi

Which dome-like muscle expands and contracts to allow your lungs to fill with air?

• Abdominals

• Lungs

• Diaphragm

• Heart

Which body system brings oxygen into your bloodstream?

• Respiratory system

• Circulatory system

• Muscular system

• Digestive system

Which structure filters and warms the air when you inhale?

• Bronchioles

• Alveoli

• Nose

• Pharynx

After the blood travels all over the body, it needs to travel back to the lungs to do what?

• Release carbon dioxide and pick up oxygen

• Release oxygen and pick up carbon dioxide

• Release carbon dioxide and pick up nitrogen

Which two structures does the gas exchange actually take place?

• Alveoli and arteries

• Alveoli and bronchioles

• Nose and mouth

• Alveoli and capillaries

A main function of the respiratory system is:

• To fight disease

• Gas exchange

• Maintain salt levels in the body

• Distribute nutrients throughout the body