Page 152 - Primary Six Notes

4. Plasma

This is the liquid part of blood consisting of; Water, Blood pro-

tein, Dissolved food, Insulin, Mineral salts, Urea, Carbon diox-

ide and hormone among other things.

General Functions of Blood

 It carries digested food and oxygen to all body parts.

 It carries waste products from the body parts to excretory

organs.

 It transports carbon dioxide from the body tissues to the

lungs

 It distributes heat to the body.

 It carries hormones to different body parts.

 Defends the body against infections.

7, VrA

Blood Groups /ASA /

/
A — * '/
Blood is grouped according to the presence of antigens A or B

in the red blood cells.

there are basically four different blood groups

1. Blood group A

2. Blood group B

3. Blood group AB

4. Blood group O

When a person bleeds and becomes anaemic victim needs to

replace the lost blood. This can be done through blood transfu-

sion.