Page 162 - Primary Six Notes

Diseases of blood Diseases of the Hereditary dis-

heart ease

 Leukaemia  Coronary heart  Haemophilia

(blood cancer) disease  Sickle cell anae-

 Malaria  Heart attack mia

 AIDS (cardiac arrest)

 Anaemia  Heart stroke
(cerebro vascular
 Low blood pres- Accident, CVA)

sure
 Hypertension
 Blood clot ( high blood

(thrombosis ) pressure)

Blood Diseases

Anaemia—Anaemia is caused due to lack of iron in one’s diet.

Iron helps in the formation of haemoglobin which easily combines

with the oxygen in the red blood cells.

Sickle cell anaemia —is a condition when one’s red blood cells are

single celled and therefore unable to carry enough oxygen around the

body.

Haemophilia— is condition in which one’s blood is unable to clot

in case of an injury.

Leukaemia— is blood cancer which makes the number of white

blood cells abnormally higher.

Malaria—is caused by plasmodia germs spread by female anopheles

mosquito. These commonly attack and destroy the red blood cells.