GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

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: -The gray matter consists of the cell bodies of motor and sensory neurons, interneurons, and neuropils (neuroglia cells and mostly unmyelinated axons). In contrast, the white matter is composed of interconnecting fiber tracts, which are primarily myelinated sensory and motor axons.

Detailed explanation-2: -gray matter-an area of unmyelinated neurons where cell bodies and synapses occur. In the spinal cord the synapses between sensory and motor and interneurons occurs in the gray matter.

Detailed explanation-3: -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-4: -The central nervous system is made up of two types of tissue: the grey matter and the white matter. The grey matter is mainly composed of neuronal cell bodies and unmyelinated axons.

Detailed explanation-5: -Answer and Explanation: The anterior horn of the spinal cord contains the cell bodies of motor neurons, whereas the posterior horn of the spinal cord contains the cell bodies of neurons that receive information from sensory neurons.

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