السؤال الأول

Antagonist means
High affinity with intrinsic activity
No affinity with intrinsic activity
High affinity with no intrinsic activity
No affinity with no intrinsic activity


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وياريت جزء توضيحي
عشان نغطي المعلومة كاملة

ليش مشوش ان هبي
وين تفاعلكم يالصيادله
الغلا اجابتج صحيحة والج نقطة

The answer



High affinity with no intrinsic activity

an agent that acts in physiological opposition



Because it has structure similar to a chemical compound produced by the body but did not have the same action of it , so it will take its place on the receptor(key - lock theory) without producing any action.
for example, dopamine ( which is one of the neuro- transimmters in the body )
has a role in the prognosis of psychosis diseases such as schizophernia( dopamine will be high in some places of the brain)
by using D2- antagonist( Dopamine antagonist) such as aripeprazole(abilify) or olanzapine (zyperxa
this will reduce the action of high dopamine in these places.

سؤال اليوم



Pernicious Anemia can be diagnoised by Schilling test and may be occured due to:


Deficiency in Vit B 12
Deficiency in Ferric
Deficiency in Folic acid
Deficiency in Vit B 12 and Folic acid


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