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12 Cards in this Set

  • Front
  • Back

Adrenergic agonists are also known as...


Sympathomimetics

Adrenergic blockers are also known as...

Sympatholytics

Alpha1 receptors are found in what four places?


The blood vessels, the eye, the bladder and prostate.

What reactions do Alpha1 receptors cause?

* Vascular tissue in muscles is stimulated.

* Arterioles and venules constrict, which returns blood to the heart.

* improves circulation

* Blood pressure

Where are Alpha2 receptors located?



In the postganglionic sympathetic nerve endings.

What reactions do Alpha2 receptors cause?

* Inhibits release of norepinephrine.

* vasoconstriction

* blood pressure

In what two places are Beta1 receptors located?

*Heart (primarily)
*Kidney

What reactions do Beta1 receptors cause?

* myocardial contractility
*
heart rate


In what four places are Beta2 receptors located?


* Smooth muscles of the lung
* Smooth muscles of the GI tract
* Liver


* Uterine muscle

What reactions do Beta2 receptors cause?

* Relaxation of lung muscles = bronchodilation
* in GI tone and motility
* Activation of glycogenolysis in the liver = blood glucose
* Relaxation of uterine muscle = in uterine contraction

Where are dopaminergic receptors located?


* Renal arteries
* Mesenteric arteries
* Coronary arteries
* Cerebral arteries

What reactions do dopaminergic receptors cause?

* Dilates vessels


* blood flow