Respiratory System Vocabulary

Process of breathing; moves air in and out of the body

• nose

• respiration

• trachea

• epiglottis

air enters through this organ where it is moistened, warmed, and cleaned

• diaphragm

• alveoli

• bronchus

• nose

Back of the throat, lined with cilia and hair

• pharynx

• trachea

• lungs

• pleural sac

Rings of cartilage around a tube that carries air to the lungs

• pharynx

• respiration

• bronchioles

• trachea

A flap of tissue that cover the trachea

• pharynx

• trachea

• epiglottis

• alveoli

Two spongy organs that expand when air moves in

• lungs

• nose

• diaphragm

• alveoli

A large tube that branches into two and enters each lung

• bronchioles

• bronchus

• pleural sac

• lungs

These smaller tubes that resemble branches are attached to the bronchus

• bronchus

• bronchioles

• alveoli

• pleural sac

At the end of the bronchioles, these are air sacs that are surrounded by blood vessels

• epiglottis

• bronchus

• alveoli

• nose

Air tight space in upper body that contains the heart and lungs

• pleural sac

• pharynx

• trachea

• bronchus