Exam 14: The Nervous System: The Spinal Cord and Spinal Nerves

The H-shaped mass in the center of the spinal cord is dominated by ________.

In step 4 of a neural reflex, a(n)________ stimulated to threshold conducts action potentials along its axons into the periphery.

Figure 14.5 Using the above-referenced diagram of peripheral nerves and nerve plexuses, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label M.

The gray matter of the spinal cord can be divided into columns, or funiculi.

Figure 14.1 Using the above- referenced diagrams of the superficial anatomy and orientation of the adult spinal cord (posterior view)and inferior views of cross-sections through representative segments of the spinal cord, showing the arrangement of gray and white matter, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label I.

Figure 14.6 Using the above-referenced diagram of the brachial plexus, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label E.

Figure 14.6 Using the above-referenced diagram of the brachial plexus, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label L.

The first branch of each spinal nerve, which communicates with an autonomic ganglion, is myelinated and is called a ________.

The ventral root of a spinal nerve contains ________.

A normal patellar reflex indicates that spinal nerves and spinal segments ________ are undamaged.

Figure 14.3 Using the above-referenced diagram of a sectional view through the spinal cord and meninges showing the peripheral distribution of the spinal nerves, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label W.