The human heart is equipped with four valves which prevent the blood from flowing back between strokes:mitral valve,aortic valve,pulmonic valve and tricuspid valve. 相关知识点: 试题来源: 解析 人类的心脏由四个瓣膜组成,其作用是阻止血液在脉搏搏动过程中回流.它们分别是:二尖瓣,主动脉瓣,肺动脉瓣和...
Seven hundred human hearts have been studied with reference to the existence of blood vessels in the valves. Of these, 14 normal hearts have been described which present blood vessels in some of the valves. A thorough clinical and pathological examination has failed to reveal that these vessels ...
lunula- the crescent-shaped area at the base of the human fingernail half-moon,lunule region,area- a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region" nail- horny plate covering and protecting part of the dorsal surface of...
OF THE DISCLOSURE Bileaflet biconical heart valve which duplicates the hemodynamics of a natural heart valve in the human heart where tips of biconical halves of the heart valve pivot outwardly in a manner representing that of natural heart valve tissue. In one embodiment of the present invention,...
The Cardiovascular System:The cardiovascular system is composed of the heart, arteries, veins, and smaller blood vessels including the capillaries. This system is responsible for pumping blood around the body and delivering vital nutrients and oxygen to cells....
Cryopreservation of human heart cells Single cells were isolated from human heart specimens and preserved at 56 掳C in a cryoprotecting solution containing dimethyl sulfoxide. The cells were re... JO Bustamante,D Jachimowicz - 《Cryobiology》 被引量: 15发表: 1988年 Improved tissue cryopreservation...
Viability in human heart valves prepared for grafting1 AUTHORS' SYNOPSISViability of antibiotic sterilized and stored human heart valves obtained at routine necropsy was assessed by tissue culture and protein and collagen synthesis.Only three of 23 valves examined showed any evidence of viab... CGA ...
This information can be used as a guide in further defining the acceptable limits for heart valve donation and processing.doi:10.1007/978-3-642-59250-8_4DAWSON,P. ESpringerCardiac Valve AllograftsDawson PE, Brockbank KGM. Human heart cold ischemia and its effect on postcryopreservation viability ...
Human hearts from patients who had died of non... EKW Sim,S Muskawad,CS Lim,... - 《Clinical Anatomy》 被引量: 24发表: 2010年 The Mechanical Properties of Native Porcine Aortic and Pulmonary Heart Valve Leaflets Aortic heart valves and their replacements fail in vivo for reasons that ...
Near-Infrared Raman Spectroscopy (NIRS) has an excellent potential for a rapid, a less invasive and real time diagnosis of various human diseases. The objective of the present study was to apply NIRS for diagnosis of human heart valves and to develop a feasible algorithm to classify the valvula...