Respiratory Funcitons
Vocabulary
Respiratory System
True/False
Diagrams A
Diagrams B
100
A flap that opens when you are breathing so that air can go down your trachea.

epiglottis

100
The thin membrane that protects the lungs and helps them slide back and forth during breathing.

pleura

100

A spongy organ in your chest that sits inside your ribs.

lung

100

Your body needs oxygen to release the energy from the nutrients in your cells.

True
100

The part labeled 1

nose

100

The part labeled 2

mouth

200

Sticky material in the trachea and bronchi that trap dust and smoke particles.

mucus

200

The sheet of muscle under the lungs that works with the rib muscles to make breathing possible.

diaphragm

200
The alveoli are covered in a network of these.

capillaries

200

Air is warmed, moistened, and filtered in the nose.

True

200

The part labeled 4

lung

200

The part labeled 8

trachea

300

Small hairs that line the respiratory tract and sweep dust and smoke away from the lungs.

cilia

300

It leads to both the trachea and the esophagus making it part of the digestive system and the respiratory system.

pharynx

300

When you breathe out, the diaphragm contracts and moves down. The rib cage gets smaller and air leaves the lungs.

False

300

The part labeled 6

diaphragm

300

The part labeled 7


pharynx

400

Rings of cartilage keep the ________ open so it doesn't collapse.

trachea

400

The part of the throat located behind the mouth and the nasal cavity and above the larynx.

pharynx

400

The part of the respiratory system that divides into smaller and smaller tubes that end in the alveoli.

bronchi

400
When oxygen and nutrients combine in your body to make ATP (energy) the only waste product produced is carbon dioxide.

False

400

the part labeled 11

alveoli

400

The part labeled 12

epiglottis

500

The voice box

larynx

500

The drawing in of air into the lungs.

inhalation

500

During gas exchange, the substance which passes from the alveoli into the bloodstream.

oxygen

500

The part labeled 13

capillaries

500

The part labeled 3

larynx