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

Possible errors in drug administration, POSSIBLE ERRORS IN DRUG ADMINISTRAT...

POSSIBLE ERRORS IN DRUG ADMINISTRATION There can be various reasons for error in administering drugs: i) Poor communication of intention by the prescriber. ii) Failur

Structural function of organic molecules, Q. What are the few examples of t...

Q. What are the few examples of the structural function of organic molecules? Ans. Organic molecules have a structural function as they are part of cell membranes, organ w

What is sex-linked traits in genetics, What is Sex-linked Traits in genetic...

What is Sex-linked Traits in genetics? The X-chromosomes carry genes for traits other than sex characteristics. Morgan discovered these sex-linked traits while observing the in

Define importance of bioelectrical impedance analysis, Define Importance of...

Define Importance of Bioelectrical impedance analysis? Bioelectrical impedance analysis (BIA) is a rapid, non-invasive and relatively inexpensive method for evaluating body com

Illustrate the functioning of comprehensive model, Illustrate the functioni...

Illustrate the functioning of comprehensive model 1) Provide continuity in understanding developmental progress, or lack thereof, in those disorders that affect neurological de

Which is an isotope of pgisphorous, The most abundant from of phosphorous h...

The most abundant from of phosphorous has 15 protos, 16 neutrons and 15 electrons. Which of the following is an isotope of pgisphorous? (make all correct choices) A. an atom wit

Types of synovial joint, TYPES OF SYNOVIAL JOINT - 1 .      BALL AND ...

TYPES OF SYNOVIAL JOINT - 1 .      BALL AND SOCKET JOINT - One bone forms a ball like head that fits into a socket formed in the other bone. Movement is possible in al

Explain the cori cycle, The  Cori cycle a)  Pyruvate formed from glucos...

The  Cori cycle a)  Pyruvate formed from glucose is converted  to lactate by lactate dehydrogenase in the muscle cell. b)  Lactate is released into  the blood and taken up b

How is cancer usually treated, Q. How is cancer usually treated? If the...

Q. How is cancer usually treated? If the cancer is in its initial stage cure is often done by surgical removal of the neoplastic tissue. The Cancers already disseminated are of

Explain hepatitis a, Hepatitis A Hepatitis A vaccine (Havrix - GlaxoSm...

Hepatitis A Hepatitis A vaccine (Havrix - GlaxoSmithKline; Vaqta Merck) is recommended for all susceptible travelers going anywhere other than Canada, Australia, New Zealand,

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