Chapter 16.2

Question 1

The ganglionic neuron synapses in three locations.

Answer 1

– Sympathetic chain ganglia
– Collateral ganglia
– Adrenal medullae

Question 2

Describe the sympathetic chain ganglia.

Answer 2

It’s on both sides of the vertebral column and controls effects in the body wall, thoracic cavity, head, neck, and limbs

Question 3

Describe the collateral ganglia

Answer 3

it’s anterior to vertebral bodies and contains ganglionic neurons that innervate
abdominopelvic tissues and viscera

Question 4

Describe the adrenal medulla

Answer 4

It’s at the center of each adrenal gland and is a modified sympathetic ganglion. When stimulated they release neurotransmitters into bloodstream.

Question 5

Describe the fibers in the sympathetic divisions.

Answer 5

– Preganglionic fibers
▪ Relatively short
▪ Ganglia located near spinal cord
– Postganglionic fibers
▪ Relatively long, except at adrenal medullae

Question 6

Cervical, inferior lumbar, and sacral chain ganglia receive preganglionic fibers from

Answer 6

T1-L2

Question 7

Only thoracic and superior lumbar ganglia1 2(T L )−receive preganglionic fibers

Answer 7

white rami

Question 8

What is the function of the collateral ganglia

Answer 8

Reduce blood flow and energy use by organs not vital to short-term survival
– Release stored energy

Question 9

Adrenal medulla synapse on cells that secrete

Answer 9

▪ Epinephrine (adrenaline)
▪ Norepinephrine (noradrenaline)