Term
| What effect does the parasympathetic system have on the eyes? |
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Definition
M3 receptor
Contraction of circular muscle/miosis
Relaxes suspensory fibers around the lens |
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Term
| What effect does the sympathetic system have on the eyes? |
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Definition
Alpha 1 receptor
Contraction of the radial muscle - mydriasis
No effect on ciliary muscle |
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Term
| What effect does the PNS have on lacrimal and salivary glands? |
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Definition
| M3 - secretion of saliva and tears |
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Term
| What is the SNS's effects on the lacrimal and salivary glands? |
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Definition
| Alpha 1 - minimal secretions |
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Term
| What is the SNS' effect on the sweat glands? Does the PNS effect? |
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Definition
No PNS innervation.
SNS - Cholinergic sweating (general) and Adrenergic sweating (local, alpha 1) |
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Term
| What is the effect of the PNS on the nasopharyngeal glands? |
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Definition
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Term
| Does the SNS have effect on the adrenal gland? |
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Definition
| Nn receptor - release of epi/NE |
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Term
| How does the PNS affect the heart? |
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Definition
M2 stimulated decreases rate and force of contraction in the SA/AV node
Some innervation of the Atria, not in the ventricles |
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Term
| How does SNS stimulation affect the heart? |
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Definition
B1 at SA/AV/His increases rate and conduction
B1 increases rate/force of contraction in atria and ventricles |
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Term
| How does the PNS affect blood vessels? |
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Definition
Arteriole and coronary BV are dilated by M3
**remember coronary and pulmonary blood flow is autoregulated |
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Term
| How does the SNS affect blood vessels? |
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Definition
Alpha1 or 2 - constriction/decreased blood flow
Beta 2 - dilation and increased blood flow |
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Term
| How does the SNS affect skin/Abdomin/Glands/Renal? |
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Definition
| All are constricted using alpha 1, no PNS innervation |
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Term
| How does the SNS affect skeletal muscle/Pulmonary? |
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Definition
B2 - dilation
no PNS effect |
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Term
| How does the SNS control vents? |
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Definition
A1 - Constriction
B2 - Dilation |
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Term
| How does the SNS control Renal and Mesenteric BV? |
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Definition
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Term
| How does the PNS and the SNS affect the lungs and bronchial glands? |
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Definition
PNS - M3 - Contraction of smooth muscle/secretion
SNS - B2 - Relaxation/decreased secretions |
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Term
| How does the PNS and SNS affect the GI tract? |
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Definition
PNS - M3 - increased motility/secretions, relaxation of sphincters --> digestion
SNS - A1 - Contract sphincters
- B2 - relax smooth muscle --> no digestion |
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Term
| What receptor is on presynaptic cholinergic nerves to inhibit release of Ach? |
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Definition
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Term
| How does the PNS/SNS affect the Gallbladder? |
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Definition
- M - Contraction
- B2 - relaxation |
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Term
| How does the SNS affect the liver and beta cells of the pancreas? |
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Definition
- A1/B2 - gluconeogenesis
Beta cells - B2 - increases secretion
- alpha2 - inhibits secretion |
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Term
| What PNS effect is seen in the pancreas? |
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Definition
| In the acini cells - M3 - secretion |
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Term
| What receptor promotes renin release from J-G cells in the kidney? |
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Definition
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Term
| When holding urine, what receptors are used? |
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Definition
SNS - B2 relaxes detrusor
- alpha 1 - contracts trigone and internal sphincter |
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Term
| When voiding urine, what receptors are utilized? |
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Definition
M3 relaxes trigone and sphincter, contracts detrustor
Alpha1 increases muscle tone of ureters |
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Term
| Which receptors are used for erection and ejaculation? |
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Definition
- M3 - erection
- alpha1 - ejaculation |
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Term
| What SNS receptor increases contractility of skeletal muscle? |
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Definition
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Term
| In the uterus, what SNS receptor relaxes the smooth muscle? |
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Definition
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Term
| What SNS receptor contracts pili muscles attached to hairs? |
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Definition
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Term
| In the spleen, what receptor releases RBCs? |
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Definition
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