Receptors Agonists And Antagonists

Question 0

Antagonist

Answer 0

Is a substance that binds to and blocks a receptor thereby preventing a natural neurotransmitter or hormone from exerting is effect.

Question 1

Agonist

Answer 1

Is a substance that binds to and activates a neurotransmitter receptor in the process mimicking the effect of a natural hormone.

Question 2

What happens when an antagonist binds to a neurotransmitter receptor

Answer 2

The normal action of the neurotransmitter will be blocked

Question 3

What happens when the agonistic adrenergic effects ephedra

Answer 3

It mimicked the effects of norepinephrine.

Question 4

Sympathetic division does

Answer 4

Fight or flight responses, slows down urine formation and digestive activities, increase the rate and force of heart contraction and dilates the pupils

Question 5

Parasympathetic division does

Answer 5

Rest and digest responses, stimulates urination and defecation and stimulates salivation and lacrimation(tears, weeping)