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What are varices? Why are they more common in the inferior limbs?
Varix means abnormal enlargement of veins. Varices happen when excessive pressure against the normal blood flux makes enlargement of the vein and thus insufficient functioning of its valves (venous insufficiency).
Varices are more common in the veins of the inferior limbs as the fluid column above these vessels is higher. This is the reason why people that spend much time standing (e.g., surgeons) are more susceptible to varices.
CAUSES OF EXTINCTION - 1 . HUNTING - Man started hunting wild animlas for food and safety trade and fun. It may be subsistence hunting, commercial hunting and sp
Unsaturated fatty acids show different types of isomerisms. We have already learnt about the.concept of isomerism in the last unit. You would realize that fatty acids with s
important of biology to man
Define the Bacillus cereus Bacillus cereus is not a common cause of food poisoning. It is a Gram positive, aerobic, spore forming rod shaped bacteria normally present in soil,
1. In chickens rose comb ( R ) is dominant over single comb ( r ). A rose-combed male is mated to a rose-combed female. Eighteen chicks are produced, ten of which are rose-combed,
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Can you use a regular syringe instead of a gas syringe in a lab
CELL WALL Discovered by Robert Hooke , 1665 when he saw dead empty cork cells. Bonne r - studied the chemical nature of cell wall. The cell wall is a rigid & prote
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