The following points highlight the three main components of a Neuron. The components are: 1. Perikaryon 2. Axon 3. Myelin Sheath and Myelinogenesis. Neuron: Components # 1. Perikaryon: (a) Its diameter varies from 5µ to 125µ. (b) It has a cell membrane, cytoplasm, a large vesicular nucleus containing a single prominent nucleolus, numerous rod-like or spherical mitochondria, and a Golgi [...]
In this article we will discuss about the Nerve Tissue:- 1. Structure of a Typical Nerve 2. Chemical Composition of the Nerve Tissue 3. Metabolism 4. Nerve Impulse 5. Transmission of Nerve Impulse from One Neurone of Other 6. Nature of the Chemical Transmitters 7. Cholinergic and Adrenergic 8. Transmission of an Impulse from the Nerve to a Skeletal Muscle. [...]
The following points highlight the two main types of membrane potential. The types are: 1. Resting Membrane Potential 2. Action Potential. Type # 1. Resting Membrane Potential: The resting membrane potential may be defined as the net difference in the charge between inside and outside membrane requiring little or no expenditure of energy. In a neurone, this is about -85mV [...]