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Action potential reaches pre-synaptic knob.This stimulates voltage gated Ca2+ channels to open and Ca2+ to diffuse in.This causes vesicles containing ACh to bind to the pre-synaptic membrane and release A...
The Mitochondria main function is to produce energy for continuation of chemical reactions within the cell and body, as well as movement of an organism. This energy is stored in the form of ATP, the mitoc...
Tobacco smoke contains nicotine. Nicotone makes platelets 'sticky' and more likely to form 'blood clots' which can block arteries in the heart, causing a myocardial infarction (heart attack) as well as bl...
The two processes are diffusion and active transport.Diffusion is the process where a substance moves from a high concentration to a low concentration. This can be referred to as going down a concen...
At the arteriole end:The blood in the capillary has a high hydrostatic pressure due to the inherently high pressure in the blood vessels (due to ventricular contraction). Hydrostatic pressure would tend t...
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