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Flashcards in ANS Deck (13):
1

2 Reasons Why ANS and Enteric NS Should be Separate

Cut all ANS fibers to GI. Still works. Also X just doesn't have enough fibers to synapse w/ all GI ganglia

2

Key Diff b/w ANS and Somatic Function

Target organs have spontaneous activity, so function is to modulate rather than make it go or stop

3

4 Single Innervation Organs

Lacrimal gland (parasymp)
Digestive glands (pancreas)
Uterus and liver (symp)

4

Sequential Syngergism

In repro behavior, like erection/ejac and uterine contraction

5

Double Innervation of Heart

Parasymp only to SA and AV node so it only affects freq, symp goes everywhere else and can modulate more aspects

6

Hexamethonium

Blocks ganglionic transmission

7

3 Uses for Atropine (& what it is)

mAChR inhibitor
Dilate pupil
Premed for GA to reduce saliva production/bronchus secretion/induce bronchodilation
Post anesthesia to prevent visceral responses to ACh buildup from neostigmine, like dangerous bradycardia

8

NE Function and R Type

Stimulation of smooth muscle/alpha

9

Epi Function and R Type

Stimulation of heart/Beta 1

10

Isoproterenol Function and R Type

Inhibition of smooth muscle/Beta 2

11

Changes in Myometrium During Pregnancy

Switch from Beta-adrenergic to alpha Rs, so pregnancy is relaxing and parturition is contraction from same fiber stimulation

12

Pheochromocytoma

Tumor of adrenal medulla secreting CATs, usually benign, but causes HTN, increased heart rate, headache, anxiety, high blood glucose, etc. Treatment is remove

13

Raynaud Disease

Hyperactivity of symp, mainly in thoracic, leading to constraction of bvs in arms/hands