Abstract
A postmortem study to ascertain the physical properties of the coronary orifice was performed in 10 men and 4 women aged 51-88 yr. Tension-length diagrams of excised human coronary orifices resemble those obtained from human femoral artery. Wide differences can exist in the 2 coronary orifices of 1 individual. These are not directly related to the occurrence of atherosclerosis in the coronary orifice.