. The American journal of anatomy. resented by only two slipswhich unite with the superficial tendons for the third and fourth occurring in the cat have been described bv Eeighard and Jen- 424 The Phylogeny of the Plantar Musculature nings, 01, as lumbricales, but they cannot properly be regarded as belong-ing to that group of muscles. The flexor hrevis medius stratum superficiale. This layer is representedin the mammals in part by the lumbricales. In the opossum these arefour in number (Fig. 6, fhrris), arising from the tendon of the flexorfibularis just as it divides into the te
. The American journal of anatomy. resented by only two slipswhich unite with the superficial tendons for the third and fourth occurring in the cat have been described bv Eeighard and Jen- 424 The Phylogeny of the Plantar Musculature nings, 01, as lumbricales, but they cannot properly be regarded as belong-ing to that group of muscles. The flexor hrevis medius stratum superficiale. This layer is representedin the mammals in part by the lumbricales. In the opossum these arefour in number (Fig. 6, fhrris), arising from the tendon of the flexorfibularis just as it divides into the tendons for the four lateral of the muscles consequently arise in the angle between the fourdiverging tendons and the fourth from the tibial side of the tendon tothe index. The muscles pass to the tibial side of the base of the proxi-mal phalanx of the second, third, fourth, and fifth digits. In the mousethere are also four lumbricals arising in the angles formed by the split- ifW f^s, f>Sp fbs, V i^^^^ T^ ^.. ^ ^-S^. Fig. 6. Transverse section through the foot of the opossum. aby=: ab-ductor quinti digiti; /6m;. ^flexor hrevis medius str. profundum; fbrtis =:flexor hrevis medius str. superficiale; /&p = flexor hrevis profundus; fbSp^^flexor hrevis superficialis str. profundum; fbs^^flexor hrevis superflcialisstr. superficiale; fZfZ = tendon of flexor longus digitorum; fZ7i = tendon offlexor longus hallucis; Zp=:lateral plantar nerve; ?np = medial plantar nerve;s = metatarso-phalangeal sesamoid cartilage of hallux; J-Y = metatarsals. ting of the long flexor tendon and passing to the same digits as in theopossum, while in the cat there are only three muscles in the group, thatfor the second digit being lacking. In the opossum and mouse the muscle to the second digit is suppliedby a branch of the medial plantar nerve, while the other three are sup-plied by the lateral plantar. In the cat all the muscles of the set aresupplied by the lateral plantar, the muscle to th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
