The development of the human body; a manual of human embryology . Fig. 116.—Diagram of a Segment of the Body and Limb. bl, Axial blastema; dm, dorsal musculature of body; rl, nerve to limb; s, septum between dorsal and ventral musculature; , dorsal layer of limb musculature; and , dorsal and ventral divisions of a spinal nerve; vm, ventral musculature of the body.—{Kollmann.) myotomes at the point indicated bends toward the innerside of the leg and passes upward again on its posterior sur-face toward the trunk, representing in this portion of itscourse the ventral portion of the
The development of the human body; a manual of human embryology . Fig. 116.—Diagram of a Segment of the Body and Limb. bl, Axial blastema; dm, dorsal musculature of body; rl, nerve to limb; s, septum between dorsal and ventral musculature; , dorsal layer of limb musculature; and , dorsal and ventral divisions of a spinal nerve; vm, ventral musculature of the body.—{Kollmann.) myotomes at the point indicated bends toward the innerside of the leg and passes upward again on its posterior sur-face toward the trunk, representing in this portion of itscourse the ventral portion of the loop. The two sacralmyotomes can be traced into the foot, the first giving rise THE LIMB MUSCLES. 235 to the musculature of the inner portion and the second to//. Fir. 117.—External Surface of the Os Innominatum showing theAttachment of Muscles and the Zones Supplied by the VariousNerves. 12, Twelfth thoracic nerve; / to V, lumbar nerves; 1 and 2, sacralnerves.—(Bolk.) that of the outer portion, and, extending to the tips of thetoes, they are reflected upon the plantar surface and so 236 THE DEVELOPMENT OF THE HUMAN BODY. loop upward on the posterior surface of the leg towardtheir point of origin from the trunk. In a transverse section through any part of the limb,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectembryol, bookyear1902
