RESPIRATORY SYSTEM-Grade 6

Is a tubelike passageway at the top of the throat that receives air, food and liquids from the mouth or nose.

• trachea

• pharynx

• bronchi

• lungs

A tube that if held open by C-shaped rings or cartilage.

The trachea is also called the....

• pharynx

• lungs

• bronchi

• windpipe

Are the main organs of the respiratory system.

Is a large muscle below the lungs that contracts and relaxes as air moves into and out of your lungs.

Type of system that gases are exchanged between the body and the environment.

• exhale

• inhale

• Respiratory System

• Nervous System

A microscopic sacs at the end of the bronchioles where gas exchange occurs.

• Alveoli

• pharynx

• trachea

• lungs