ANS

Question 1

2 Reasons Why ANS and Enteric NS Should be Separate

Answer 1

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

Question 2

Key Diff b/w ANS and Somatic Function

Answer 2

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

Question 3

4 Single Innervation Organs

Answer 3

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

Question 4

Sequential Syngergism

Answer 4

In repro behavior, like erection/ejac and uterine contraction

Question 5

Double Innervation of Heart

Answer 5

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

Question 6

Hexamethonium

Answer 6

Blocks ganglionic transmission

Question 7

3 Uses for Atropine (& what it is)

Answer 7

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

Question 8

NE Function and R Type

Answer 8

Stimulation of smooth muscle/alpha

Question 9

Epi Function and R Type

Answer 9

Stimulation of heart/Beta 1

Question 10

Isoproterenol Function and R Type

Answer 10

Inhibition of smooth muscle/Beta 2

Question 11

Changes in Myometrium During Pregnancy

Answer 11

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

Question 12

Pheochromocytoma

Answer 12

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

Question 13

Raynaud Disease

Answer 13

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