CHAPTER 18: ADRENERGIC DRUGS Flashcards

1
Q

adrenergic agonists

A

drugs that stimulate and mimic the actions of the sympathetic nervous system. Also called sympathomimetics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

adrenergic receptors

A

receptor sites for the sympathetic neurotransmitters norepinephrine and epinephrine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

alpha-adrenergic receptors

A

a class of adrenergic receptors that are further subdivided into alpha1 and alpha 2 adrenergic receptors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

autonomic functions

A

bodily functions that are involuntary and results from the physiologic activity of the autonomic nervous system. The functions often occur in pairs of the opposing actions between the sympathetic and parasympathetic divisions of the autonomic nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ANS

A

a branch of the PNS that controls autonomic bodily functions. It consists pf the sympathetic nervous system and the parasympathetic nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

beta-adrenergic receptors

A

receptors located on the postsynaptic cells that are stimulated by specific autonomic nerve fibers. Beta 1 adrenergic receptors are located primarily in the heart, whereas beta 2 adrenergic receptors are located in the smooth muscle fibers of the bronchioles, arterioles and visceral organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

catecholamines

A

substances that can produce a sympathomimetic response. They are either endogenous catecholamines (such as epinephrine, norepinephrine and dopamine) or synthetic catecholamine drugs (such as dobutamine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

dopaminergic receptor

A

a third type of adrenergic receptor (in addition to alpha-adrenergic and beta-adrenergic receptors) located in various tissues and organs and activated by the binding of the neurotransmitter dopamine, which can be either endogenous or a synthetic drug form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

mydriasis

A

pupillary dilation, whether natural (physiologic) or drug induced

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

ophthalmics

A

drugs that are used in the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

positive chronotropic effect

A

an increase in heart rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

positive dromotropic effect

A

an increase in the condition of cardiac electrical impulses through the atrioventricular node, which results in the transfer of nerve action potentials from the atria to the ventricles. This ultimately leads to a systolic heartbeat (ventricular contractions)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

positive inotropic effect

A

an increase in the force of contraction of the heart muscle

myocardium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

sympathomimetics

A

drugs used therapeutically that mimic the catecholamines epinephrine, norepinephrine and dopamine. Also called adrenergic agonists

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

synaptic cleft

A

the space either between two adjacent nerve cell membranes or between nerve cell membrane and effector organ cell membrane (also called synapse)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly