Guarding this opening is the coronary valve or valve of Thebesius.
It terminates in the coronary cushion and the sensitive laminæ.
Attention should then be given to the flap of skin and coronary cushion.
In these cases the coronary arteries share in the generalized arteriosclerotic process.
In many cases sclerosis of the coronary arteries as a part of general arteriosclerosis ...