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Phys Lect 17

QuestionAnswer
ANS effect: Pupil Symp: Dilation. Parasymp: Constriction.
ANS effect: Ciliary Muscle Symp: Relaxation. Parasymp: Contraction.
ANS effect: Nasal, lacrimal, GI, and salivary Glands Symp: None/Inhibition. Parasymp: Secretion. **Parasymp causes amylase secretion
ANS effect: Sweat glands Symp: Secretion. Parasymp: none.
ANS effect: Heart rate & contraction Symp: Increase. Parasymp: Decrease.
ANS effect: Lungs (Bronchioles) Symp: Dilation. Parasymp: Constriction.
ANS effect: Lungs (glands) Symp: decrease (alpha1) or increase (beta2). Parasymp: secretion.
ANS effect: GI sphincters Symp: contraction. Parasymp: Relaxation.
ANS effect: Liver, Pancreas, Adrenal Medulla Symp: Gluconeo/glycogenolysis (liver), Decreased secretion (pancreas), secrete epi (adrenal). Parasymp: None
ANS effect: Ureter Symp: Contraction. Parasymp: Relaxation.
ANS effect: Detrusor Muscle (bladder) Symp: Relaxation. Parasymp: Contraction.
ANS effect: Uterus Symp: Contraction. Parasymp: Variable.
ANS effect: Genitalia Symp: Ejaculation/vaginal contraction. Parasymp: Erection (via ACh and NO).
ANS effect: Adipose cells Symp: Lipolysis (Energy use during high stress, consumption by muscle cells). Parasymp: None.
Pre and Post ganglionic neurons of the sympathetic NS Pre(Short): Cell Body: IML. Travel out ventral root, white rami, sympathetic trunk. Post(long): travel from sympathetic chain to the target tissues.
ANS effect: Blood Vessels Symp: Dilation/constriction with varying levels of symp. ParaSymp: NONE (NO INFLUENCE).
Adrenal Gland with ANS Serves as a modified sympathetic ganglion. **Chromafin cells recieve presynaptic neurons and release Epi/Norepi.
ANS effect on Heart at rest Strong Parasymp tone Weak symp tone **Tone is rate of firing.
ANS effect on Heart during exercise Decreased parasymp tone (90bpm). (usually Feedforward b/c you anticipate the exercise and HR increases). **Vigorous exercise: Increased symp tone (130 bpm)
Created by: WeeG
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