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NEET MDS Quiz - Practice Test
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pharmacology - 3 Questions

1
Pharmacology

Drugs mostly cross biological membranes by

1)  Passive diffusion     
2)  Active diffusion
3)  Active transport     
4)  Carrier mediated transport

📝 Explanation:

Passive diffusion: The movement of drug across a membrane in a manner driven solely by the concentration gradient. In passive diffusion, drug moves from a region of greater concentration to a region of lesser concentration.

2
Pharmacology
Current evidence indicates that endorphins are 1. endogenous molecules having morphine like properties 2. receptors located in the periaqueductal grey area of the brain Which are sensitive to opiates 3. large polypeptides that regulate renal activity 4. central nervous system transmitters implicated in depressive psychoses

📝 Explanation:

endorphins are endogenous molecules having morphine like properties

3
Pharmacology

Rapid induction of anaesthesia occurs with which of the following inhalational anaesthetics

1. Isoflurane
2. Halothane
3. Desflurane
4. Sevoflurane

📝 Explanation:

less solublity in blood means more rapid induction, however quicker emergence after discontinuing depends upon solublity and redistribution in lipids of body as well

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