1. Lesson objectives To name the three types of blood cells
To describe the functions of the three main blood cells

2. Blood Cells

3. Red Blood Cells Also known as erythrocytes
Structure: small cells with no nucleus
Function: transport oxygen in body
Produced in bone marrow

4. White Blood Cells Also known as leucocytes
Structure: large irregularly shaped cells which contain a nucleus
Function: to protect body from infection
Produced in bone marrow

5. Platelets Structure: small cells with no nucleus
Function: to produce clotting in the body
Produced in bone marrow