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At the axon terminal of a motor neurone, an action potential arrives and triggers an influx of calcium ions. These calcium ions cause vesicles containing Acetylcholine (a neurotransmitter that works on ch...
Since the spirometer is a closed system, over time the oxygen concentration will decrease and therefore the oxygen concentration in the blood per inhalation will decrease. When the blood reaches the medul...
Phagocytes recognise and bind pathogens through chemical attraction and receptors. Phagocytes (white blood cells) engulf the pathogen so it is contained within the cell in a phagosome. Lysosome containing...
Alterations to tumour suppressor genes such as their increased methylation, mutation in the genes, or an instance where the tumour suppressor genes are not being transcribed or expressed, results in rapid...
The nervous system can be divided into two branches-the parasympathetic branch and the sympathetic branch. The activity of the sympathetic nervous system is increased in response to exercise. This respons...
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