Download Higher Biology Heart Diagram Gif. The heart pumps blood through our immense and complicated circulatory systems at high pressure. The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.
This leads to the 2 numbers associated with blood pressure—systolic blood pressure is the higher. Revision website designed for as and a level biology students. Learn more about the heart in this article.
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We have a complete lesson pack for teaching children in year 6 about the circulatory system in human biology. This leads to the 2 numbers associated with blood pressure—systolic blood pressure is the higher. Each side of the heart consists of an atrium and a ventricle which are two connected chambers. Chambered muscle organ that is composed of cardiac muscle, and is myogenic to initiate contractions to pump blood around the body.