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The human digestive system, its parts and functions are in this topic. This includes digestive enzymes, their optimum conditions, substrates and products, as well as detailed structure of villi and microvilli.
Revise and learn how to sketch the diagram of a heart, label heart chambers and blood vessels, distinguish between arteries, veins and capillaries, describe the cardiac cycle, the control of the heart rate and the causes and consequences of occlusion.
Learn about homeostasis, thermoregulation, control of blood glucose, diabetes, leptin, melatonin, male and female reproductive systems, the SRY gene, secondary sexual characteristics and the menstrual cycle.
This topic covers neurons and synapses. Get to grips with the structure of a neuron, the propagation of action potentials along a neuron and the transmission of electrical impulses across a synapse. There is also a specific look at cholinergic synapses.
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