NEET PG DENTAL EXAM

BRAIN

SPINAL CORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of spinal cord tissue consists of neuron cell bodies, dendrites, unmyelinated axons, and neuroglia cells?
A
gray matter
B
white matter
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Grey matter is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil (dendrites and unmyelinated axons), glial cells (astrocytes and oligodendrocytes), synapses, and capillaries.

Detailed explanation-2: -The gray matter is mostly composed of neuronal soma (or nerve cell body), neuroglial cells (like astrocytes), axon terminals (part of synapses), unmyelinated neurons, and neuropil (includes the dendrites, certain glial cells, and unmyelinated axon). Hence, option (a) is correct.

Detailed explanation-3: -The dorsal root ganglia contain the cell bodies of sensory neurons. Axons of these sensory neurons travel into the spinal cord via the dorsal roots. The grey matter in the center of the cord contains interneurons and the cell bodies of motor neurons, axons, and dendrites.

There is 1 question to complete.