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Motor neurones have a myelin sheath made of Shwann cells. It's an electrical insulator meaning action potentials cannot pass through them. Along the axon there are gaps where there's no myelin sheath, cal...
In Regeneration, Pat Barker explores the horrific consequences of war upon the human psyche. This is primarily demonstrated in the character of Burns, a man unable even to eat due to his damaging ...
When we integrate by parts, we begin by setting the first term to equal some variable U, the second term in the integral we set to be dv/dx. Then we differentiate the U to obtain du/dx and integrate dv/dx...
When blood glucose levels drop too low it is detected by hypothalamus. The release of insulin by the pancreas is stopped so no more glucose is converted to glycogen. Instead glycogen, which is stored in t...
tanx = 4cotx + 3 - Multiply through by tan to form a quadratic. tan^2x = 4 + 3tanx - Simplify by allowing y to equal tanx. y^2 = 4 + 3y - Rearange to standard quadratic form. y^2 - 3y -4 = 0 - Factorise....
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