Chapter 1.91 (page 18)

Question 1

______________: It carries action messages from the CNS to the autonomic effectors
throughout the body.

Answer 1

Functional anatomy

Question 2

The important fact here is that the autonomic neuron that leaves the
brain stem or spinal cord terminates in a __________ called a ______________.

Answer 2

junction box

ganglion (plural is ganglia)

Question 3

In the ganglion, the____________ passes the nerve impulse on via the synapse to the
____________ (final neuron) that carries the nerve impulse to the ultimate autonomic
effector organ. This is called the autonomic conduction path .

Answer 3

preganglionic neuron

postganglion neuron

Question 4

The Autonomic Nervous System itself has two divisions called:

Answer 4

1. Sympathetic nervous system (SNS): fright and flight

2. Parasympathetic nervous system (PSNS): rest and digest

Question 5

______________: This system operates in emergency situations, e.g., strenuous exercise and strong emotional
situations.

Answer 5

Sympathetic Nervous System

Question 6

In the SNS structure, all sympathetic _________axons synapse with many ______________
neurons that terminate in many widely separated organs.

Answer 6

preganglionic

preganglionic

Question 7

Preganglionic neurons begin in the __________ of the

__________ regions from ___ to ____

Answer 7

gray matter
thoracolumbar
T1-L2

Question 8

Neurons leave the spinal cord through the ventral root to
enter a where they
synapse with postganglionic neurons.

Answer 8

sympathetic ganglion (sympathetic chain)

Question 9

postganglionic neuro can synapse within the same
ganglion, or ________, or ________ the ________ to
synapse in another paraverterbral ganglion, in the ______ “________.

Answer 9

ascend
descend
sympathetic chain

Question 10

Postganglionic neurons have dendrites and cell bodies in
sympathetic ganglia, which look like two chains of beads and
are referred to as the ________________ .

Answer 10

sympathetic chain ganglia

Question 11

Typically there are __ ganglia in each sympathetic chain; __
cervical, __ thoracic, __ lumbar, __ sacral and __ coccygeal.

Answer 11

23
3
11
4
4
1

Question 12

_____________ travel in spinal nerves to blood vessels,
sweat glands, and arrector hair muscles, or in sympathetic
nerves, to various other organs in the body.

Answer 12

Postganglionic neurons

Question 13

Postganglionic neurons Can also pass through the ____________ without
synapsing, and synapse ________ to the vertebral column in the
prevertebral ganglion, and form splanchnic nerves which are
nerves from the thoracic sympathetic ganglia distributed to the
viscera.

Answer 13

paraverterbral ganglion

anterior