Quiz Ch 14 & 15 Bio Anat

What is the collective name for all of the axons that project inferiorly from the spinal cord?

cauda equina

The substance that fills the subarachnoid space is

cerebrospinal fluid

Axons cross from one side of the spinal cord to the other through a gray matter region called the

gray commissure.

Of the following, which nerve ranges farthest from its roots in the cervical plexus and is most vital to your health?

phrenic

The subarachnoid space contains ________, and the epidural space contains ________.

CSF; fat, connective tissue, and blood vessels

Which neurotransmitter is released by all preganglionic axons?

acetylcholine

Which structure contains motor axons only?

anterior root

Which term describes the specific region of skin monitored by a single spinal nerve?

dermatome

The craniosacral division of the autonomic nervous system

is also called the parasympathetic division of the ANS has preganglionic axons originating from the brain and sacral spinal cord has preganglionic axons synapsing in terminal or intramural ganglia

All of the following are effectors innervated by the ANS except

skeletal muscle fibers

Because of the location of its preganglionic neuron cell bodies, the sympathetic division is also called the ____________ division.

thoracolumbar