what i need to revise: biology b7

Blood and Circulatory System:

• what is blood
• red blood cells
• plasma
• white blood cells
• platelets
• humans have a double circulatory system
• diagram of the heart

Tissue fluid and the skeletal system:

• chemicals are exchanged between cells and capillaries
• if you didnt have a skeleton you'd be jelly like
• joints allow the bones to move
• muscles pull on bones to move them

Exercise and fitness:

• exercise helps to increase fitness
• information is needed to develop the right fitness regime
• heart rate and blood pressure increase during exercise
• the ways fitness can be measured

Exercise and Injury:

• excessive exercise can cause injuries
• the RICE method
• what physiotherapists do

Controlling body temperature:

• body…