1. The Circulatory System
Year 10 AADP

2. Things we are going to cover
Blood
Blood Vessels (Vascular System)
The Pulmonary (Lungs) System
The Systemic (heart) Circuit
The Heart

3. Blood Blood is made up of 2 sections.
A solid section and a liquid section.

4. Blood – Solid section Solid section makes up 45% of all blood volume.
Consists of:
Red Blood cells
White Blood cells
Platelets

5. Blood - Liquid section 55% of blood volume is liquid.
The liquid is called plasma.

6. Components of blood – Red blood cells
Contains iron.
Give the red colour to blood.
Are produced in the bone marrow (pelvis, sternum, skull)
Have a life cycle of 120 days.

7. Components of blood – white blood cells
Produced in the bone marrow.
Move to areas of infection or disease and attempt to wipe out invading infections.
Puss is the accumulation of dead white blood cells.

8. Components of blood - Plasma
Plasma is a yellow solution containing:
Water, nutrients, hormones, and waste products.

9. Functions of blood There are 2 main functions of blood. Transport
Body normality

10. Function - transport
The blood transports nutrients from the digestive system and lungs to the tissues.
Also transports waste products to the lungs and urinary systems.

11. Function – body normality
Blood serves 2 main purposes for body normality.
Body Temperature
Protection (clotting, foreign bodies)