Dissection of the Platana and the Frog

by J. D. F. Gilchrist; Cecil von Bonde

(a) A lingual artery supplying the tongue.

(b) A carotid artery, running round the side of the œsophagus, and supplying the head. At its origin it is slightly swollen into the carotid gland.

2. The systemic arches run backwards on each side of the body, and meet posteriorly to form the dorsal aorta. Each systemic arch gives off:—

(a) A subclavian artery to the shoulder and fore-limb.

(b) An occipito-vertebral artery to the head and the vertebral column.

(c) An œsophageal artery to the dorsal wall of the œsophagus.

(d) A laryngeal artery to the larynx.

At the point where the dorsal aorta is formed, note the origin of the cœliaco-mesenteric artery which sends branches to the stomach, liver, intestine, and spleen.

Trace the dorsal aorta backwards and note that it passes between the kidneys, to each of which it gives off four renal arteries and then it divides posteriorly into an iliac artery to each leg. The iliac artery is continued backwards as the femoral artery in the leg.