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