Question

figure 13 - 1 the spinal cord
use figure 13 - 1 to answer the following question:
ascending and descending tracts can be found in which area(s) of the spinal cord?
9
1, 2, 3
8
11, 12, 13, 14
4, 5, 6

Explanation:

Ascending and descending tracts are composed of nerve fibers that carry sensory (ascending) and motor (descending) information. These tracts are located in the white matter of the spinal cord. In the spinal cord diagram, areas 1, 2, 3 represent the white matter regions (funiculi - dorsal, lateral, and ventral funiculi respectively). The other options: 9 is the central canal (CSF - filled), 8 is part of the gray commissure, 11 - 14 are parts of the gray matter (which is involved in processing local neural signals, not long - distance tracts like ascending and descending ones), and 4 - 6 are also gray matter regions (posterior, lateral, and anterior horns of gray matter).

Answer:

1, 2, 3