Unit 4 Chapter 13 Word Scramble

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Question	Answer
Which of the following is contained within gray matter?	Cell bodies, dendrites, and proximal parts of axons of neurons
Voluntary motor impulses leave the spinal cord via the _________blank of gray matter.	anterior horn.
Which of the following is not considered a region of the spinal cord? Cervical Thoracic Lumbar Pelvic Sacral	Pelvic
Which of the following sensory functions involves neurons in the posterior root ganglion? Smell Hearing Touch Taste Vision	Touch
The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the _________blank.	cauda equina
Which of the following is not a function associated with the spinal cord?	Protect neurons in both the ascending and descending tracts
Which of the following structures is the richest in lipid content?	White matter
The upper motor neurons that control skeletal muscles begin with a body in the _________.	motor association cortex of the cerebrum/ precentral gyrus of the cerebrum
Which of the following fractures would be the least likely to cause a spinal cord injury?	A fracture of vertebra L4
Motor commands are carried by _________ from the brain along the spinal cord.	descending tracts
The structure found between the posterior rootlets and the posterior root ganglion is called the _________.	posterior root of a spinal nerve
A patient with no sensation in the left thumb would most likely have nerve damage of the _________ spinal nerve.	C6
"Somatosensory" does not refer to sensory signals from _________.	the viscera
Which of the following is not a distal branch of the spinal nerve?	posterior root
mixed nerve consists of both _________ and _________.	afferent; efferent fibers
Which of the following branches of a spinal nerve has the cell bodies of only sensory neurons?	Posterior (dorsal) root
There are _________ pairs of spinal nerves.	31
The anterior rami of the spinal nerves form nerve plexuses in all regions except the _________ region(s).	thoracic
Cell bodies of the anterior root are located in the _________.	gray matter
Nerve fibers are insulated from one another by _________blank.	endoneurium
A ganglion is a _________blank.	cluster of cell bodies in the PNS
Which of the following nerves originates in the lumbosacral plexus? Axillary Sciatic Phrenic Ilioinguinal Obturator	Sciatic
The cervical plexus is the origin of the _________blank nerve(s).	phrenic
A _________ is a cordlike organ composed of numerous _________.	nerve; axons
The connective tissue that surrounds a nerve fascicle is called the _________.	perineurium
Many upper motor neurons synapse with lower motor neurons in the _________.	anterior horn
Eyes and ears are innervated by _________ fibers.	special
Which of the following is comprised of anterior rami from C5-T1?	Brachial plexus

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