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heart
heart structures
Term | Definition |
---|---|
mediastinum | a membranous partition between two body cavities or two parts of an organ especially that between lungs |
endocardium | the thin smooth membrane that lines inside of the chambers of the heart and forms the surface valves |
pericardium | the membrane enclosing the heart consisting of an outer fibrous layer and an inner double layer of serous membrane |
superior vena cava | carrying blood from the head arms and upper body |
inferior vena cava | carrying blood from lower body |
right atrium | receives deoxygenated blood from veins of the body |
right ventricle | the lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it under low pressure into lungs via pulmonary artery |
pulmonary trunk | vessels that arises from the right ventricle of heart |
pulmonary artery | the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation |
pulmonary vein | one of four vessels that carry aerated blood from the lungs to the left atrium of the heart. carry bright red oxygenated blood |
left atrium | the upper right chamber of the heart. receives oxygenated blood from lungs and pumps it to left ventricle |
left ventricle | the lower left chamber of the heart receives blood from left atrium |
ascending aorta | the first section of aorta |
aortic arch | largest section of aorta |
thoracic aorta | the third section of aorta |
oxygenated blood | oxygen in it |
deoxygenated blood | no oxygen in it |
systemic circulation | main part of the blood circulation |
pulmonary circulation | circulation of blood from heart to lungs |