Pharmacology 2 Flashcards Preview

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Flashcards in Pharmacology 2 Deck (7)
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1
Q

Define pharmacology

A

Study of the way living systems are affected by chemical agents.

2
Q

Define a drug.

A

Any chemical agent which affects a biological system.

3
Q

Give examples of receptors.

A
Cell surface receptors
Intracellular receptors
Ion channels
Carriers
Enzymes
Nucleic Acid
4
Q

Define affinity.

A

Determined by strength of chemical attraction between drug and receptor.

5
Q

Define efficacy.

A

Determined by how good the drug is at activating the receptor.

6
Q

Define an agonist.

A

Mimic normal effect of receptor.

7
Q

Define an antagonist.

A

Block normal action of receptor.