a dome shaped sheet of muscle, the _________, separates the chest from the abdomen

• diaphragm
• epiglottis
• alveoli
• bronchial tubes

After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.

• mucus
• trachea
• larynx
• epiglottis

a chamber behind the nose and mouth that leads to the trachea

• pharynx
• trachea
• epiglottis
• larynx

a flap of tissue that closes when we eat so food doesn't not go down the trachea

• larynx
• pharynx
• trachea
• epiglottis

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

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

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

What is A pointing to?

• trachea

• diaphragm

• bronchi

• nasal cavity

Tags

NGSS.HS-LS1-2

What is B pointing to?

• trachea

• diaphragm

• pharynx

• nasal cavity

Tags

NGSS.HS-LS1-2

What is C pointing to?

• trachea

• diaphragm

• pharynx

• nasal cavity

Tags

NGSS.HS-LS1-2

What is D pointing to?

• trachea

• bronchi

• alveoli

• nasal cavity