OCR Text |
Show 60 DR. B. C. A. WINDLE ON THE [Feb. 1, greater part of the 5th lumbar, the whole of the 1st sacral, and a twig from the 2nd. The pudic nerve is formed from the remaining portion of the 2nd. Fig. 2. Lumbar and sacral nerves. (Diagrammatic.) I.hy. Ilio-hypogastric ; Ling. Ilio-inguinal; E.C. External cutaneous; Ac. Anterior crural; Ob. Obturator ; Gc. Genito-crural; G.Sc. Great scaitic; P. Pudic. Thorax. The chief points of interest are as follows:-(1) Triangularis sterni is very large and well-marked. It ascends nearly as high as the upper margin of the sternum. (2) The diaphragm is in most respects in no way different from the ordinary condition. Its central tendon is, however, triradiate, consisting of three strips of fibrous tissue arranged somewhat like an arrow-head ; one of these is directed towards the sternum, a second backwards and to the right, a third backwards and to the left, and the interval between these last is muscular. (3) Lungs.-The left has three lobes, divided in a way similar to that of the right lung in the human subject. The right has five |