5/26/2023 0 Comments Gray matter of spinal cord![]() In these sensory neurons, a group of ion channels thought to be responsible for somatosensory transduction has been identified. The nerve endings of dorsal root ganglion neurons have a variety of sensory receptors that are activated by mechanical, thermal, chemical, and noxious stimuli. Dorsal roots and ventral roots come together and exit the intervertebral foramina as they become spinal nerves. Ventral roots consist of axons from motor neurons, which bring information to the periphery from cell bodies within the CNS. These neurons are of the pseudo-unipolar type, meaning that they have an axon with two branches that act as a single axon, often referred to as distal and proximal processes. ![]() ![]() In the peripheral nervous system, afferents refer to the axons that relay sensory information into the central nervous system. The axons of dorsal root ganglion neurons are known as afferents. Hence, the spinal ganglia can be regarded as grey matter of the spinal cord that became translocated to the periphery. The dorsal root ganglia develops in the embryo from neural crest cells, not the neural tube. The dorsal root ganglia lie along the vertebral column by the spine. The grey matter of the spinal cord contains neuronal cell bodies, dendrites, axons, and nerve synapses.
0 Comments
Leave a Reply. |