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the receptor detects stimulus. The receptor generates an electrical impulse sent to the CNS by neurons (sensory). Chemical messengers (neurotransmitters) carry the electrical impulse across a synapse. Neu...
Arteries: carry blood away from the heart, have thick muscular walls, have small lumens, and contains blood under high pressure.Veins: carry blood to the heart, have thin...
To answer this question, you need to know what the reflex arc is and why we need it. The reflex arc is a pathway of neurones (nerve cells) and their connections (synapses) that doesn't go through the cons...
your skin covers almost all parts of your body to prevent infection from pathogens, your nose has hairs within them which act as a physical barrier to infection, mucus is produced by goblet cells in your ...
Insulin is the hormone that controls how glucose gets into your cells to give them energy after you eat. If you think of your cells having a lock on them and insulin is the key. Once your food is digested...
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