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Show 1894. J MAMMALIAN HAND AND FOOT. 369 (Nerv. plantaris medialis supplies the four toes 1-4 and the inner half of fifth, but there is an anastomosis between the lateral branch of the nerve and the medial.) The tendons of the flexor digitorum sublimis (tibialis) are weak ; they are perforated by the tendons of the profundus. The sublimis goes to the 5th, 4th, 3rd, and 2nd toes ; it ends on the I. phalanx and on the tendon-sheath of the profundus, especially on the ligg. annularia. The flexor digit, profundus (fibularis) gives five tendons to toes 1-5, the tendons for the 2nd and 3rd toes being more connected than the others. I have found only two lumbricales, to the 4th and 5th toes ; they are very strong. The adductores (plantar layer, Cunningham) go to the hallux, 2nd and 5th toes. The abductor dig. minimi arises from the calcaneum and ends on phalanx I. of the 5th toe. The tendon of the tibialis posticus is cleft, both parts ending on the naviculare. 8. Extensores. The tibialis anticus is inserted into the internal cuneiform, the tendon being a little divided. The peronceus longus is very strong; it crosses almost transversely on the planta and ends on the first metatarsal bone. 6. EDENTATA. 1. EUPHRACTUS MINUTUS. a. Flexores. The plantaris (?) arises from the femur (lower end) and the fibula (upper end), or the knee-joint; it ends in the fascia plant. superfic. and tendons which go to the Ph. and the " five toes," ending there in the tendon-sheaths. 'No flexor brevis superflcialis is present. The flexores longi (subl. and prof.) are connected with each other but divisible; they form one large tendon which divides into separate tendons. Each tendon is cleft, but there is no perforation. A muscle arises from the fibula and is inserted into :-(1) the proc. transversus calcanei; (2) the tendon-sheath of the peronseus brevis and minimi; fascia dorsalis; (3) the ligam. transversum on the ankle-joint. 8. Extensores. The extensor digitorum et hallucis longus goes to all five toes, the fourth toe getting two tendons. There is an extensor hallucis "proprius" (like the ext. poll. longus) arising from the fibula and inserted into the first phalanx of the great toe together with the extensor brevis. |