4. Write important role/roles of the following:
(a) Tonsils
(b) Spleen
(c) Hepatic portal vein
(d) Basophils
(e) S.A.N.
Answers
Answer:ok
Explanation:spleen:-help to protect the body by clearing worn-out red blood cells and other foreign bodies
Tonsils:- is a part of a body immune system they can stop germs entering to the body
Hepatic portal vein:-is the most important vein that receives blood from the
body and transport it to the liver
Basophils:- is to fight parasitic infection and play role in preventing blood clotting
Answer:
Tonsils - they stop entering germ into the mouth
Spleen- it store blood for the time of emergency it also destroy worn out RBC's
Hepatic portal vein- the hapetic portal vein is the blood vessel that moves blood from the spleen and liver
Basophils- in addition to fighting parasitic infection and it also helps in blood clotting
S.A.N- it helps in determining the heart beat