Respiratory & Circulatory System

When you inhale, ribs move

• down and inward

• up and out

when you exhale, ribs move:

• up and out

• down and inward

What are the functions of the respiratory system?

• supplies the blood with O2 when we inhale

• supplies the blood with O2 when we exhale

• removes C02 from the blood when we exhale

• removes C02 from the blood when we inhale

site of respiratory gas exchange between 02 and C02

• bronchi

• alveoli

• nasal cavity

where air is clean, warmed and moistened

• bronchi

• nasal cavity

• diaphragm

Which gas leaves the blood and enters the alveoli?

• 02

• C02

Which gas leaves the alveoli to enter the blood vessel?

• C02

• 02

Which gas is removed from the body cell by the red blood cell as a waste product of cellular respiration?

• C02

• 02

Where air is cleaned, warmed, and moistened

• trachea

• nasal cavity

• alveoli

• diaphragm

sheet of muscle that moves down when you inhale and up when you exhale

• pharynx

• diaphragm

• larynx