The anterior interventricular branch and circumflex of the left coronary artery,the right coronary artery,the internal thoracic artery,and the great saphenous vein were excisedfrom 7 human adult autopsy subjects.Paraf...The anterior interventricular branch and circumflex of the left coronary artery,the right coronary artery,the internal thoracic artery,and the great saphenous vein were excisedfrom 7 human adult autopsy subjects.Paraffin slices of these specimens were prepared and stainedwith different dyes in order to reveal the elastin,collagen and smooth muscle in the walls of thesevessels.The slices were scanned with a microspectrophotometer and the relative contents of thecomponents mentioned above were represented with the mean absorbance respectively.It was found that no significant difference existed in the contents of the above mentioned com-ponents between the left and right coronary arteries(P】0.05).The internal thoracic artery con-tains relatively higher elastin than the others(P【0.01).The contain a highcollagen/elastin ratio(P【0.01),which makes the coronary arteries be suitable to carry out thespecial functional needs of the heart.展开更多
基金The project supported by National Natural Science Foundation of China
文摘The anterior interventricular branch and circumflex of the left coronary artery,the right coronary artery,the internal thoracic artery,and the great saphenous vein were excisedfrom 7 human adult autopsy subjects.Paraffin slices of these specimens were prepared and stainedwith different dyes in order to reveal the elastin,collagen and smooth muscle in the walls of thesevessels.The slices were scanned with a microspectrophotometer and the relative contents of thecomponents mentioned above were represented with the mean absorbance respectively.It was found that no significant difference existed in the contents of the above mentioned com-ponents between the left and right coronary arteries(P】0.05).The internal thoracic artery con-tains relatively higher elastin than the others(P【0.01).The contain a highcollagen/elastin ratio(P【0.01),which makes the coronary arteries be suitable to carry out thespecial functional needs of the heart.
