Excitation threshold of neuron
What do you mean by the excitation threshold of a neuron? How this threshold is related to the “all-or-nothing” rule of neural transmission?
Expert
Excitation threshold of neuron is defined as the depolarization level which should be caused by the stimulus that is to be transmitted as a neural impulse. This value is around –50 mV. The transmission of neural impulse all along the neuronal membrane follows “all-or-nothing rule” or it takes place with the maximum intensity or nothing occurs. Always and only when the excitation threshold is achieved depolarization continues and the membrane reaches its higher possible positive polarization, around +35 mV. In case excitation threshold is not attained nothing takes place.
Is Phenoxyethanol injurious? Illustrate it.
What is markownikoff’s rule?
Give a brief description of myoglobin? Write down the function of this molecule in muscle tissue?
Give a brief introduction of the term blood brain barrier?
Specify the hormones which promote the liberation of female gamete from follicle and at which day of the menstrual cycle does this mechanism take place? What is this event termed as?
American trypanosomiasis: It is commonly known as Chagas disease, caused by Trypanosoma cruzi, is a parasite, found mostly in blood sucking triatomine insects. The organism T cruzi and infection in humans were first introduced in 1909
Describe the main proteins which constitute the sarcomere? Describe the function of such molecules in the muscle cells?
Organization change management is the very useful path for an individual to achieve the aim and to achieve the goals in the life from the viewpoint of organization and from the criteria of the organization. To manage the change, organizational behavio
Why does the ingestion of alcohol raise diuresis? Answer: Alcohol hinders the secretion of ADH (that is, antidiuretic hormone) by the pituitary. That is why whenever
In the time of Darwin the results of Mendel’s research on biological inheritance had not been published, Genetics was not yet developed, neither DNA nor the concept of genetic mutation were known. What is the modern darwinist theory that incorporates these bodie
18,76,764
1945871 Asked
3,689
Active Tutors
1461156
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!