Respiratory & Excretory Review

Letter D is pointing to which Respiratory organ?

• Alveoli
• Diaphragm
• Lung
• Bronchi

The main organ of the Respiratory System where the gas exchange takes place.

• Heart
• Small Intestine
• Lungs
• Anus

Letter B is pointing to which organ of the Respiratory System?

• Nose
• Trachea
• Lungs
• Diaphragm

When the diaphragm contracts and moves down, the lungs are...

• expanding with air
• shrinking - pushing air out

When the diapragm relaxes and moves back up, the lungs are...

• expanding with air
• shrinking - pushing air out

The trachea branches off into two:

• Alveoli
• Bronchi
• Bronchioles

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

• bronchi
• lungs
• oxygen
• alveoli

What does the Larynx hold ?

• The larynx holds the whole sub system 
• The larynx is part of the plant cells. 
• The larynx holds the vocal chords. 
• The larynx is part of animal tissues. 

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

• larynx
• 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