Unit 5: Body Systems Review

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.HS-LS2-3

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

The only externally visible part of the respiratory system

• Eyes

• Nose

• Pharynx

• Larynx

What is function of the dome-shaped diaphragm?

• This is where gas exchange happens.
• Air passes through the diaphragm on the way to the lungs.
• To use pressure differences to allow air into the lungs or to help push air out of the lungs.

• It is under the lungs and keeps them from falling down to your stomach.

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

The circulatory system works with the ___________ system to provide our body with oxygen and get rid of CO2 (carbon dioxide).

• respiratory

• digestive

• muscular

• skeletal

Another name for the throat is called the:

• Nasopharynx
• Pharynx
• Larynx

tiny, hairlike projections in the airway that move in a wavelike manner.

• alveoli

• cilia

• trachea

• lungs