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14 terms

Effects of Parasympathetic and Sympathetic Divisions of the ANS on Specific Effectors

Anatomy ANS test
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Eye/iris
Para: Constricts Symp: Dilates
Glands
P: Stimulates secretion S: No innervation
Sweat glands
P: No innervation S: Stimulates sweat production
Arrector pili muscles
P: No innervation S: Stimulates contraction
Heart Muscle
P: decreases rate, slows, steadies heart S: Increases rate and force of heart beat
Coronary blood vessels
P: Vasoconstricts S: Vasodilates
Lungs
P: Constricts bronchioles S: Dilates bronchioles
Digestive tract organs
P: Increases peristalsis, relaxes sphincters S: decreases activity, constricts sphincters
Liver
P: No effect S: stimulates liver to secrete glucose into the blood
Adrenal medulla
P: No effect S: Stimulates to secrete adrenalin into blood
Urinary system
P: Contracts bladder wall, promotes voiding S: Relaxes bladder wall, decreases urine output
Female reproductive system
P: Inhibits uterine contraction, vasodilates clitoris S: contracts vaginal walls, uterus
Male reproductive system
P: Causes vasodilation, erection, S: Causes ejaculation
Blood vessels
P: Little or no effect S: Constricts bv of digestive system, skin to divert blood to heart, brain, skeletal muscles, raises BP