GROSS ANATOMY

Detailed explanation-1: -In vertebrates the ganglion is a cluster of neural bodies outside the central nervous system. A spinal ganglion, for instance, is a cluster of nerve bodies positioned along the spinal cord at the dorsal and ventral roots of a spinal nerve.

Detailed explanation-2: -Ganglia. Ganglia are clusters of nerve cell bodies present outside the CNS. The nerve cell bodies are clustered together in these structures and their axons reach different parts of the organ.

Detailed explanation-3: -Sympathetic chain ganglia, also known as paravertebral ganglia, are the autonomic ganglia of the SNS. They consist of a paired chain of ganglia found ventral and lateral to the spinal cord. The ganglia extend from the upper neck to the coccyx, where the two chains fuse to form the unpaired ganglion impar.

Detailed explanation-4: -While ganglia are clusters of neuron bodies, they are not in the CNS, but in the PNS.