In this article we will discuss about:- 1. Meaning of EEG 2. Source of EEG 3. Clinical Significance. Meaning of Electroencephalogram (EEG): 1. Electroencephalogram is recording of summated electrical activity of neurons of brain with help of surface electrodes placed on scalp. 2. During surgery, electrodes may be placed directly on cortex of brain and recording thus obtained is known [...]
In this article we will discuss about the meaning and functions of autonomic nervous system. Meaning of Autonomic Nervous System: It is the part of nervous system, which regulates functioning of visceral organs. Two different limbs of autonomic nervous system are sympathetic and parasympathetic nervous system components. Sympathetic takes origin from lateral horn cells of thoracolumbar segments of spinal cord [...]
In this essay we will discuss about the types and theories of sleep. Type of Sleep: Sleep is an altered state of consciousness during which some of body functions are depressed and some others activated. i. Sleep and coma: A person who is in sleep can be aroused by tapping and a person who is in a state of coma [...]