登录
(anatomy) either of the two cavities of the upper part of the heart that pass blood to the ventricles
耳
a specialized structure in the human body that controls the flow of fluids or substances in a specific direction
阀
a heart chamber that receives deoxygenated blood from the body and pumps it to the right ventricle
右心房
a heart chamber that receives deoxygenated blood from the right atrium and pumps it to the lungs for oxygenation
右心室
(anatomy) a chamber in the lower part of the heart that carries the blood from the auricles to the arteries
心室
a heart chamber that receives oxygenated blood from the lungs and sends it to the left ventricle
左心房
the heart chamber that receives oxygenated blood from the left atrium and pumps it into the aorta to be distributed throughout the body
左心室
a heart valve consisting of three leaflets that regulates blood flow between the right atrium and right ventricle
三尖瓣
a heart valve that allows blood to flow from the right ventricle to the pulmonary artery
肺动脉瓣
a heart valve between the left atrium and left ventricle that regulates blood flow by opening and closing its two leaflets
二尖瓣
a heart valve that regulates the flow of blood from the left ventricle to the aorta, the largest artery in the body
主动脉瓣
the outermost layer of the heart, providing protection and lubrication to facilitate its smooth functioning
心外膜
the muscular layer of the heart responsible for its contraction and pumping action
心肌
the thin layer of tissue that lines the inside of the heart chambers and valves
心内膜
the point where the inferior and left borders of the heart meet, representing the tip of the left ventricle
顶点
