NEET PG DENTAL EXAM

HISTOLOGY

NERVOUS TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The junction of this area of the neuron and the one following it can be considered the “trigger zone”
A
Soma
B
Dendrite
C
Axon Hillock
D
Axon Terminal
Explanation: 

Detailed explanation-1: -Plasma membrane of the axon is called axolemma. Axon hillock is the most sensitive part of the neuron. It is the starting point of the axon. It is the start point of the nerve impulse and hence is known as the trigger zone.

Detailed explanation-2: -The axon hillock is the last site in the soma where membrane potentials propagated from synaptic inputs are summated before being transmitted to the axon.

Detailed explanation-3: -Synapse – The junction between the axon of one neuron and the dendrite of another, through which the two neurons communicate.

Detailed explanation-4: -The cell body contains a specialized structure, the axon hillock that integrates signals from multiple synapses and serves as a junction between the cell body and an axon. An axon is a tube-like structure that propagates the integrated signal to specialized endings called axon terminals.

There is 1 question to complete.