structure of heart
- Created by: Chantelle..
- Created on: 19-06-18 19:21
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- structure of the heart
- systemic system: around the body
- pulmonary system: to and from the lungs
- right side: receives blood returning from tissues
- sends it to lungs to drop off CO2
- left side: receives oxygenated blood from lungs
- sends it off round the body to tissues
- myogenic: beat automatically without stimulation of nerves
- 2 atria & 2 ventricles
- opening between atria & ventricle
- = valve that prevents back flow
- right side is called tricuspid valve
- left side is called mitral valve
- on right atria = superior and inferior vena cava
- 2 large veins = bring blood back from tissues
- on top of right ventricle = pulmonary artery
- branch going to each lung
- left side: pulmonary veins
- return blood to left atria from lungs
- aorta: takes blood from left ventricle to rest of body
- coronary arteries: takes blood from aorta to heart
- if disrupted = heart problems ( angina & heart attack)
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