Year 8 Respiratory system

What is the function of the respiratory system?

• Taking in Carbon Dioxide and expelling oxygen

• Assist with breathing mechanic

• Taking in Oxygen and expelling oxygen

• Help with the circulation of the blood through the body

What are the parts of the respiratory system shown in the diagram?

a

b

c

d

e

f

g

h

i

j

Lungs

Trachea

Intercostal Muscles

Nose

Diaphragm

Ribcage

Bronchus

Alveoli

Bronchiole

Ribs

Reorder the following body parts in order, how oxygen enters the bloodstream

• Bronchioles

• Trachea

• Alveoli

• Bronchus

• Nose and Mouth

Oxygen enters the bloodstream through a process called?

• Ventilation process

• Respiration process

• Gaseous exchange process

• Perfusion

To exchange means to

• GIve away

• Swap

• Receive

• dissolve

The gases that exchange in humans during breathing are................. and Oxygen

The air you breath in is about ...........

• 40%

• 70%

• 21%

• 37%

Oxygens combine with ..................... when it enters the blood system?

• Platelets

• Plasma

• White Blood Cells

• Haemoglobin

Match the following word to their definitions

• Air sacs in the lungs

• Alveoli

• Smallest blood vessels

• Capillary

• Transport oxygen in the blood

• Concentration

• The amount of something in one place

• Haemoglobin

another word for breathing in is?