Question

gray matter of the spinal cord and spinal roots
the gray matter of the spinal cord looks like a butterfly or the letter h in cross section (figure 7.20, p. 255). the two posterior projections are the dorsal horns, or (1 ) horns, the two anterior projections are the ventral horns, or anterior horns. the gray matter surrounds the central canal of the cord, which contains csf.
neurons with specific functions can be located in the gray matter. the dorsal horns contain interneurons. the cell bodies of the (2 ) neurons, whose fibers enter the cord by the dorsal root, are found in an enlarged area called the dorsal root ganglion. if the dorsal root or its ganglion is damaged, sensation from the body area served will be lost. the ventral horns of the gray matter contain cell bodies of motor (3 ) of the somatic (voluntary) nervous system, which send their axons out the ventral root of the cord. the dorsal and ventral roots fuse to form the spinal nerves.
homeostatic imbalance 7.8
damage to the ventral root results in flaccid paralysis of the muscles served. in (4 ) paralysis, as described in chapter 6, nerve impulses do not reach the muscles affected, thus, no voluntary movement of those muscles is possible. the muscles begin to (5 ) because they are no longer stimulated.
1 neurons 2 flaccid 3 atrophy 4 posterior 5 sensory
1 sensory 2 neurons 3 flaccid 4 atrophy 5 posterior
1 flaccid 2 atrophy 3 posterior 4 sensory 5 neurons
1 posterior 2 sensory 3 neurons 4 flaccid 5 atrophy
1 atrophy 2 posterior 3 sensory 4 neurons 5 flaccid

Explanation:

The dorsal horns of the spinal - cord gray matter are also called posterior horns. Sensory neurons' cell bodies are in the dorsal root ganglion. Motor neurons in the ventral horns send axons out the ventral root. Flaccid paralysis occurs when nerve impulses don't reach muscles. Muscles atrophy when not stimulated.

Answer:

1. posterior
2. sensory
3. neurons
4. flaccid
5. atrophy