Sympathetic Nervous System

Question 1

what is a paravertebral ganglion

Answer 1

portion of sympathetic chain at each vertebral level

Question 2

how many ganglia are in each portion of sympathetic trunk?

Answer 2

cervical - 2/3 pair
thoracic - 11/12 pair
lumbar - 4/5 pair
sacral - 4/5 + impar

Question 3

how are paravertebral ganglia innervated?

Answer 3

thoracolumbar outflow via white rami communicans

Question 4

what vertebral level does thoracolumbar outflow occur?

Answer 4

T1-L2

Question 5

where does the preganglionic neuron of the sympathetic trunk reside?

Answer 5

intermediolateral horn of gray matter

Question 6

what is sent from the intermediolateral horn of the gray mater?

Answer 6

preganglionic fiber

Question 7

where are the preganglionic fibers of the sympathetic ns located?

Answer 7

white rami communicans

Question 8

where do the preganglionic fibers of sympathetic ns exit?

Answer 8

splanchnic nerves

Question 9

where do the splanchnic nerves synapse?

Answer 9

collateral ganglion near target organ
directly on target organ (adrenal gland)