Respiratory System

Identify the parts of the respiratory system shown in the image.

a

b

c

d

e

f

g

Right Lung

Diaphragm

Larynx

Alveoli

Bronchi

Left Lung

Trachea

Match the following Respiratory System parts to their description

• Lead directly into the lungs

• Trachea

• Small spherical sacks in the lungs

• Alveoli

• A hard tube going from mouth to lungs

• Bronchi

• Large muscle that controls breathing

• Diaphragm

• Warms and moistens the air

• Nasal cavity

When you are breathing in your diaphragm is

• contracting and flattening

• relaxing

• Pulling sideways

• expanding

Order the steps of breathing in

• Pressure decreases

• Diaphragm flattens

• Chest cavity expands

• Air rushes in

• Pressure is equalised

What happens to the diaphragm when you exhale?

• It contracts and flattens

• It pulls sideways

• It expands

• It relaxes and moves upwards

Which muscle is primarily responsible for breathing?

• Quadriceps

• Triceps

• Biceps

• Diaphragm

During inhalation, the diaphragm moves in which direction?

• Sideways

• Upwards

• Downwards

• Inwards

When you breath in your ​ (a)   contracts and flattens. This ​ (b)   the space of your chest cavity causing a ​ (c)   in the pressure.

• increases
• decreases
• diaphragm