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PSNS SNS
Pharmacology
| Question | Answer |
|---|---|
| PSNS- Heart | decrease HR, decrease FC in atria only, decrease conduction velocity |
| PSNS-Blood vessels | no innervation except at penis and vagina, NO causes dilation here |
| PSNS Eye | tear secretion, miosis from contraction of circular muscle, near vision due to contraction of cilliary muscle (fat lens, zonules relaxed) |
| PSNS Respiratory tract | contraction of smooth muscle-bronchoconstriction, increased bronchial and nasopharyngeal secretions |
| PSNS GI tract | increased tone and motility, increased secretions, increased salvation |
| PSNS Endocrine | none |
| PSNS Liver | None |
| PSNS Urinary tract | contraction of detrusor muscle (facilitates urination), relax sphincters |
| PSNS Reproductive Organs | penile erection-dilation of blood vessels, increased mucous secretions |
| SNS Heart | increased HR, increased FC in atria and ventricles, increased conduction velocity, increased automaticity |
| SNS Blood vessels | constriction of arteries in most tissues with alpha receptors, dilation in those with beta receptors (licver and skeletal muscle) |
| SNS Respiratory Tract | relaxation or bronchodilation |
| SNS Eye | tear secretion, mydriasis (contraction of radial muscle). minor relaxation of ciliary muscle |
| SNS Skin | Contraction of piloerector muscle, thermoregulatory, sweat gland stimulation |
| SNS GI | relax muscle tone to decrease motility, decrease secretions, increase salvation |
| SNS Endocrine system | inhibition a2 or slight stmulation b2 of insulin secretion |
| SNS Liver | glycogenolysis a1 and gluconeogenesis b2 (increases availability of glucose) |
| SNS Kidney | stimulate renin release b1, inhibit renin release A1 |
| SNS Urinary tract | relax bladder detrusor (inhibit urination) contract sphinctors |
| SNS reproductive organs | constrict blood vessels, semen emission, relax uterus muscles |