. Human physiology. eep cut on the front. This is made onopening the carcase of the animal, whilecarelessly chopping through the one which is free from this defect, andone in which the blood-vessels at the base(upper and broader portion) are not closelycut. If a superabundance of fat surroundsthe base of the heart, remove the greater por-tion of it without cutting any of the vessels. THE HEART AND ITS DISSECTION 123 The student, having provided himself with a sharp knife with a pointedblade, a few wood skewers, and a jug of water, may now proceed with theexamination and diss
. Human physiology. eep cut on the front. This is made onopening the carcase of the animal, whilecarelessly chopping through the one which is free from this defect, andone in which the blood-vessels at the base(upper and broader portion) are not closelycut. If a superabundance of fat surroundsthe base of the heart, remove the greater por-tion of it without cutting any of the vessels. THE HEART AND ITS DISSECTION 123 The student, having provided himself with a sharp knife with a pointedblade, a few wood skewers, and a jug of water, may now proceed with theexamination and dissection of the heart as follows :— Place the point of the knife just underneath the surface of the heart, so asto raise a portion of the very thin membrane or skin which closely invests membrane is the inner layer of the pericardium, the outer layer of which,it will be remembered, surrounds the heart loosely, and is cut or torn away inremoving the organ from the chest. A few remaining portions of this outer.
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