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The SA (sinoatrial node) is a pacemaker that is in the right atrium of the heart. SA node control the heart rate using the electrical impulses that sends to the heart muscles and this is how the heart pumping blood out to the entire body and how the heart contract. The stages of the pathway … Read more
Pain occurs as a symptom as stimuli activate nociceptors because of an imbalance in the homeostasis of the tissue due to changes in the chemical, temperature and mechanical(12,15,17). This detection in the surrounding can be altered and therefore cause persistent pain in the body(1) and this sensitisation is therefore increased and modulated(8), such as in … Read more