MEDICAL PHYSIOLOGY

PHYSIOLOGY

NEUROTRANSMISSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where are multipolar neurons most abundant at in the body?
A
PNS
B
brain and spinal cord
C
specialized ganglia of the PNS
D
no-where
Explanation: 

Detailed explanation-1: -Multipolar neurons constitute the majority of neurons in the central nervous system. They include motor neurons and interneurons /relaying neurons are most commonly found in the cortex of the brain and the spinal cord. Peripherally, multipolar neurons are found in autonomic ganglia.

Detailed explanation-2: -Multipolar neurons are the most common type of neuron. Each multipolar neuron contains one axon and multiple dendrites. Multipolar neurons can be found in the central nervous system (brain and spinal cord). The Purkinje cell, a multipolar neuron in the cerebellum, has many branching dendrites, but only one axon.

Detailed explanation-3: -Motor neurons have the most common type of ‘body plan’ for a nerve cell-they are multipolar, each with one axon and several dendrites.

Detailed explanation-4: -So, the correct answer is ‘Brain’

Detailed explanation-5: -The lateral spinal nucleus consists of multipolar neurons in the white matter ventrolateral to the lateral edge of the dorsal horn and is present at all levels of the spinal cord.

There is 1 question to complete.