Circulatory System

What is the function of red blood cells?

• Made in long bones
• Carries oxygen around the body

What is the function of white blood cells?

To fight disease

What do platelets do?

• Made in bone marrow
• Produce blood clots

What does plasma do?

Carries all the nutrients in the blood.

Define heart rate

The number of times your heart beats per minute.

Where can you find your carotid pulse?

In the neck.

Where can you find your radial pulse?

In your wrist.

How can you calculate your maximum heart rate?

220 - age

Where can you find your carotid pulse?

It is between 60% and 80% of your maximum heart rate.

In the neck.

Where can you find your radial pulse?

In your wrist.

How can you calculate your maximum heart rate?

220 - age

It is between 60% and 80% of your maximum heart rate.

How do we breathe?

To breathe in:

• Diaphragm contracts and flattens
• The ribcage goes up and out
• The lungs have low pressure so the air is drawn in

To breathe out:

• Diaphragm relaxes and curves upwards
• The ribcage goes down and in
• The lungs have high pressure, so the air is squashed out

What is tidal volume?

The volume of air you breathe in and out with each breath

What is minute volume?

The total volume of air breathed in and out in one minute

What is residual volume?

The air left in the lungs after you have breathed out as hard as possible

What is vital capacity?

The maximum amount of air you can breathe out after breathing in as much air as possible

What is respiration rate?

The number of times you breathe in one minute

What is vo2 max?

The maximum amount of oxygen your body can take in and use in one minute