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Axon hillock

Axon hillock

(Science: cell biology) Tapering region between a neurons cell body and its axon. This region is responsible for summating the graded inputs from the dendrites and producing action potentials if the threshold is exceeded.


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Re:

... the signal. I agree because the nerve impulse is generated at the axon hillock, not in the axon itself.

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by aptitude
Mon Sep 12, 2011 2:19 am
 
Forum: Human Biology
Topic: Axons generate impulse or transfers information
Replies: 2
Views: 3312

Axons generate impulse or transfers information

... if the total strength of the nerve signal exceeds the threshold at axon hillock, it triggers an action potential. But if someone asks me a question about axon being ...

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by itsmridecide
Wed Jul 27, 2011 7:38 am
 
Forum: Human Biology
Topic: Axons generate impulse or transfers information
Replies: 2
Views: 3312

neurology

... fires when the soma (cell body) reaches threshold. It is then, that the axon hillock begins to fire, this firing elicits a cascade of changes with the membrane potential. ...

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by chachi
Wed Dec 02, 2009 2:30 am
 
Forum: Human Biology
Topic: neurology
Replies: 5
Views: 3663

Please help me to answer these questions

... An for the second, it is a net summation fo both EPSPs and IPSPs at the axon hillock that will determine of the neuron will be depolarized or hyperpolarized. Please tell ...

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by Vangeek
Sun Sep 28, 2008 5:46 pm
 
Forum: Cell Biology
Topic: Please help me to answer these questions
Replies: 4
Views: 3991


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