. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. 196 THE NERVOUS SYSTEM. a. The N. cuianeus cruris lateralis (Fig-. 128 cj)) ; which, Hke other cutaneous nerves, runs in a common sheath tog-ether with an artery and vein to the skin. It arises close to the sciatic nerve. b. Muscular branches to the MM. peroneus, tibialis antiais, extensor crvris h revis, and the -flexor tarsi anterior. Fig. Distribution of the JV. peroneus. A Inner terminal twig of N. peron. conini. inf. li Outer terminal twig of N. peron. conini. inf. cpl N. cutaneus dorsi jjedis lateralis. pc N. peron
. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. 196 THE NERVOUS SYSTEM. a. The N. cuianeus cruris lateralis (Fig-. 128 cj)) ; which, Hke other cutaneous nerves, runs in a common sheath tog-ether with an artery and vein to the skin. It arises close to the sciatic nerve. b. Muscular branches to the MM. peroneus, tibialis antiais, extensor crvris h revis, and the -flexor tarsi anterior. Fig. Distribution of the JV. peroneus. A Inner terminal twig of N. peron. conini. inf. li Outer terminal twig of N. peron. conini. inf. cpl N. cutaneus dorsi jjedis lateralis. pc N. peroneus. pci N. peroneus communis inferior pi N. peroneus lateralis. pin X. pei'oneus medialis. c. The N. peroneus medialis (Fig". 130 pvi) is the smaller of the two terminal branches of the N. pero- neus ; it courses with the Art. titii- alis antica under the MM. jlexores tarsi anterior and pjosterior and sup- plies the latter. d. The N. peroneals lateralis (Fig. T 30 jd) is the larger terminal branch of the N. pjeroneus ; it passes down- wards between the heads of the M. tihialis anticus to the tendon of origin of the Flexor tarsi posterior, where it gives off two branches (Nos. i and 2) ; the nerve then unites with the i\". peroneus lateralis to form a common stem, the N. peroneus comnivnis in- ferior (Ecker). The N. peroneus lateralis g-ives off :— (i) The N. cntaneus dorai pedis lateralis (cpl), which passes to the skin of the outer side of the dorsum of the foot. (2) A second branch to the M. ex- tensor of the fourth and fifth toes. e. The N'. pjeroneus communis in- ferior (Fig". 130 p^<^^) runs on the dorsum of the foot in company with the Art. dorsalis pj^dis, underneath the MM. extensores digiti 1 and // ; it supplies several branches and then bifurcates. It g"ives off :— (i) Branches to the MM. extensor longns and fjrevis digiti Please note that these images are extracted from scanned page images that may have been digitally enhanced for rea
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