What is the excitation threshold of a neuron, Biology

Assignment Help:

Q. What is the excitation threshold of a neuron? How does this threshold relate to the "all-or-nothing" rule of the neural transmission?

The excitation threshold of a neuron is the depolarization level that must be caused by a stimulus to be transmitted as a neural impulse this value is about -50 mV. The transmission of the neural impulse along the neuronal membrane obeys an all-or-nothing rule or nothing happens or it happens with maximum intensity. Always and only when the excitation threshold is reached the depolarization continues and the membrane reaches its maximum possible positive polarization about +35 mV if the excitation threshold isn't reached nothing happens.


Related Discussions:- What is the excitation threshold of a neuron

What do you mean by syphilis, Q. What do you mean by syphilis? The Syph...

Q. What do you mean by syphilis? The Syphilis, as well known as lues, is a disease caused by the bacteria Treponema pallidum. Before the invention of penicillin, syphilis was a

Explain what position of patient will during jvp examination, Explain what ...

Explain what Position of Patient will be During JVP Examination ? Position of Patient During JVP Examination: The patient is propped up to 45"on a back rest or pillow as in thi

Stem.., charactoristics of offset

charactoristics of offset

Protozoans, Protozoans Prokaryotes represent only a few thousand of th...

Protozoans Prokaryotes represent only a few thousand of the estimated 2 million species of living beings known on the earth today. The rest are mostly eukaryotes that form the

Epidemiological association between hemophilia and hiv, Q. What is the epid...

Q. What is the epidemiological association between hemophilia and HIV infection? In the past the blood banks did not usually perform HIV detection tests and many hemophilic pat

Botulism, B o tu l i s m It is a toxicity in chickens, turkeys, d...

B o tu l i s m It is a toxicity in chickens, turkeys, ducks and other aquatic birds caused by a bacterial toxin produced by anaerobic bacteria Clostridium botulinum mai

Rock be well-known from living things, Critical thinking the organization o...

Critical thinking the organization of a rock is much simpler than that of living things. By what other criteria can a rock be well-known from living things? Rocks are not comp

Salinity - marine ecosystems, Salinity - Marine Ecosystems Physico-...

Salinity - Marine Ecosystems Physico-chemical factors - Salinity The sea is salty and its salinity is fairly constant, averaging about 3.5 per cent usually written as

Define role of zinc in controlling gene expression, Define role of Zinc in ...

Define role of Zinc in controlling Gene Expression? Zinc atoms have specific structural roles in enzyme molecules, as well as, in many other proteins and in bio membranes. Thes

What in genetics is hybridization, What in Genetics is hybridization? H...

What in Genetics is hybridization? Hybridization in Genetics is the crossing of individuals from "pure" and dissimilar lineages in relation to a given trait, i.e., the crossing

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd