WebMar 24, 2024 · The Heart. The heart is an organ about the size of your fist that pumps blood through your body. It is made up of multiple layers of tissue. Your heart is at the center of your circulatory system. This system is a network of blood vessels, such as arteries, veins, and capillaries, that carries blood to and from all areas of your body. WebJul 18, 2024 · The atrioventricular bundle, also called the bundle of His, is a bundle of cardiac muscle fibers located within the septum of the heart. This fiber bundle extends …
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Web6.2.3 Explain the action of the heart in terms of collecting blood, pumping blood, and opening and closing of valves. The right atrium collects blood from the superior and inferior vena cava and the left atrium collects … Web1 likes, 1 comments - LEVITISE - Lifestyle Centre (@levitise) on Instagram on April 11, 2024: "What have a plate of chopped kidneys and testosterone got to do with ... georgia courts child support worksheet
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http://ib.bioninja.com.au/standard-level/topic-6-human-physiology/62-the-blood-system/heart-beat.html WebMar 24, 2024 · The “lub” is the sound of these valves closing. After your ventricles contract to pump blood away from the heart, the aortic and pulmonary valves close and make the … WebThe electrical stimulus travels down through the conduction pathways and causes the heart's ventricles to contract and pump out blood. The 2 upper chambers of the heart (atria) are stimulated first and contract for a short … christian journaling books