GENERAL HISTOLOGY

Detailed explanation-1: -The cell bodies of somatic sensory and visceral sensory neurons are found in the dorsal root ganglia of spinal nerves, and on the ganglia of selected cranial nerves. Hence known as sensory ganglia.

Detailed explanation-2: -The spinal ganglion contains the cell bodies of sensory neurons situated in the posterior root of each spinal nerve (except for spinal nerve C1). These neurons are known as first-order neurons of the somatosensory system and carry sensations related to touch, vibration, proprioception, pain and temperature.

Detailed explanation-3: -Ganglia are oval in structure and contain neuronal cell bodies (somata), satellite cells (a type of glial cell), and a protective connective tissue layer.

Detailed explanation-4: -The ventral horns contains the cell bodies of motor neurons that send axons via the ventral roots of the spinal nerves to terminate on striated muscles.

Detailed explanation-5: -The dorsal root ganglia (or spinal ganglia) are described as nodule-like structures found on the posterior roots of each spinal nerve, which contain the soma (or cell bodies) of the afferent sensory nerves carrying sensory signals back to the central nervous system (Figure 33.1) (Standring, 2008).