Respiratory System

small air sacs in the lungs

• alveoli

• air

• larynx

two tubes that branch off the trachea to carry air to the lungs

• trachea

• lungs

• bronchial tubes

tiny hairs found in the nose

• alveoli

• cilia

• pharynx

large muscle on the floor of the chest cavity that causes breathing

• diaphragm

• capillaries

• oxygen

flap of skin that keeps food out of the trachea

• throat

• epiglottis

• trachea

push air out of the lungs

• pharynx

• inhale

• exhale

pull air into the lungs

• inhale

• voice box

• throat

voice box

• larynx

• air

• windpipe

major organs for respiration

• tiny hairs found in the nose

• oxygen

• lungs

gas in the air that is needed by your body

• smalles blood vessels

• oxygen

• carbon dioxide