Receptors (Exam #1) Flashcards
How do M3 receptors affect the eye (2)?
- Contract iris circulation muscle (miosis)
- Contract ciliary muscle (near vision accommodation)
How do B1/B2 receptors affect the heart (2)?
- Increase HR
- Increase contractility
How do M2 receptors affect the heart (2)?
- Decrease HR
- Decrease contractility
How do A receptors affect the blood vessels?
Vasoconstriction
How do B2 receptors affect the blood vessels?
Relax skeletal muscle (vasodilation)
How do M3 and M5 receptors affect the blood vessels?
Release NO in endothelial cells
this is parasympathetic
How do M3 receptors affect the lungs?
Bronchoconstriction
How do M3 receptors affect the GI tract (3)?
- Contract GI walls
- Relax GI sphincters
- Increase secretions
How do M3 receptors affect the GU tract (2)?
- Contract GU walls
- Relax GU sphincters
How do M receptors affect the skin/glands?
Increase sweating from eccrine glands
How do A receptors affect the skin/glands?
Increase sweating from apocrine (stress) glands
Which adrenergic receptor vasoconstrictor in skin, kidney, mucous membranes?
A1
Which adrenergic receptor vasodilators in skeletal muscle?
B2
Which adrenergic receptor stimulates salivary, sweat glands?
M1
Which adrenergic receptor relaxes gut wall and bronchodilates?
B2
