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Determine the uses of Electrical Recording - Brain function
We can also learn about brain function by recording its electrical activity. In electroencephalography (EEG) and the closely-related potential (ERP) recording, electrodes are attached to the scalp and the amplified electrical activity detected by them is displayed on chart recorder or computer screen. Surface recording is possible because the electrochemical activity of the brain is conducted passively through the meninges (protective membranes surrounding the brain), and the skull to scalp. The recorded voltages represent the summed activity of millions of neurons in the area of brain closest to the recording electrode so, in order to get an idea about the spatial distribution of activity, several separate channels of EEG corresponding to electrodes in different positions on the head can be recorded simultaneously. This procedure has proved invaluable in the diagnosis of epilepsy and in the identification of sleep-related disorders.
Structure of the Sperm The spermatozoa in different animal groups display a wide variety of shapes and sizes but all share a. basic morphological plan. The sperm in most anim
Shows evidence of the ability to see the interaction between environment / ecology and genetics / evolution Some candidates may recognise that evolution can result in less no
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Captive Breeding - Measures for Species Conservation Species which are reduced to dangerous levels need more intensive management, and one strategy is their captive breeding.
what is genitalia?
types of excretory system of lower animals
Modulation of the transcription of cell cycle proteins? The 1,25-(OH),D compound (calcitriol), is present in the blood complexes to the vitamin D-binding protein, a specific
What organic molecules make up the cell membrane?
DISEASE CONCERNED WITH KIDNEY - 1. Paget's disease - Abnormalities of kidney. 2. Uramia - Increases in quantity of urea. 3. Nephritis - Inflamation in glom
Q. What is self-catalytic RNAs? Ribozymes - Term 'ribozyme' was initially suggested by Thomas R. Cech, Nobel Prize winning biochemist, who discovered this class of RNA molecul
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