Autonomics

Question 1

Autonomic plexus components?

Answer 1

Symphathetic post-ganglionic fibers
Parasympathetic pre-ganglionic fibers
Visceral afferent fibers

Question 2

Sympathetic components

Answer 2

White Ramus Communicans (laterl / T1-L2)

Gray Ramus Communicans (medial / all spinal nerves)

Question 3

Parasympathetic components

Answer 3

Cranial Nerves III, VII, IX: Head & neck
Cranial Nerve X (vagus): Thoracic viscera and gut up to LCF
S2-S4: Gut beyond LCF and pelvic viscera

Question 4

Cardiopulmonary trunk sympathetic innervation?

Answer 4

• Preganglionics enter sympathetic trunk via T1-4/5 white rami
• Postganglionics leave trunk via cardiopulmonary nerves from cervical & upper thoracic ganglia

Question 5

Where are unipolar and pseudounipolar neurons found?

Answer 5

DRG

Question 6

Where are multipolar neurons found?

Answer 6

Ventral, lateral, and dorsal horns and sympathetic chain ganglia

Question 7

Where are the lateral horns found?

Answer 7

T1-L2 and S2,3,4

Question 8

What is SAME DAVE?

Answer 8

Somatic Afferent, Motor Efferent; Dorsal Afferent, Ventral Efferent

Question 9

Where is the conus medullaris found?

Answer 9

Adults: L1/2; Neonates: L3, 24wk fetus: S1; 8wk fetus: down to base