Respiratory System

The windpipe is also called

• trachea

• alveoli

When we breathe in...................enters our lungs and passes into the blood.

• oxygen

• carbon dioxide

When we ................... carbon dioxide leaves our body.

• breathe in

• breathe out

Tags

NGSS.MS-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

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

• bronchi
• alveoli
• capillaries
• bronchioles

The large muscle that contracts and relaxes and moves air in and out of the lungs.

• epiglottis

• alveoli

• diaphragm

• trachea

An air tube that is held open by C-shaped rings of cartilage. Also known as the windpipe.

• pharynx

• trachea

• nose

• alveoli

The air tubes in your lungs branch off into smaller, narrower tubes called

• bronchioles

• trachea

• larynx

• cilia

The main organs of the respiratory system

• heart

• lungs

• esophagus

• trachea

What is the correct name for the voice box?

• Trachea
• Bronchus
• Bronchiole
• Larynx