The Human Respiratory System

air enters here

• nose

• pharynx

• nasal cavity

• larynx

where air is warmed and further filtered

• nose

• mouth

• nasal cavity

• trachea

scientific name for the human throat

• trachea

• pharynx

• bronchus

• throatious

lower part of the throat

• trachea

• pharynx

• epiglottis

• bronchus

voice box at the top of the trachea

• larynx

• pharynx

• trachea

• nasal cavity

opening of the trachea that is covered by a flap of tissue

• epiglottis

• bronchioles

• esophagus

• larynx

the two branches that the trachea divides into

• bronchi

• bronchus

• alveoli

• capillaries

smaller tubes of the bronchus

• bronchioles

• alveoli

• capillaries

• bronchi

air sacs at the end of a bronchioles made of grape-like clusters

• alveoli

• capillaries

• bronchi

• grapes

blood vessels that go to the lungs to exchange respiratory gases

• capillaries

• alveoli

• bronchioles

• veins