| OCR Text |
Show 1873.] CERTAIN M U S C L E S O F B I R D S . 627 account of their condition and relations in it, from which a correct idea may be easily formed of their situation in other birds with the help of the accompanying details. In commencing the dissection of the leg of a Fowl in order most easily to observe the arrangement of the muscles about to be described, the body, from which most of the feathers have been removed, should be laid on its side, and a section made in the skin, in a line parallel to and just over the femur, along its whole length ; from the extremities of this line the sections should be continued at right angles to it, extending upwards and downwards from the end over the head of the femur, and along the outer side of the leg from that at the knee. The skin must be then dissected downwards as a flap off the muscular adductor mass below, and some way upwards above the level of the femur. After this has been done the following muscles will be found without difficulty:- Fig. 1. Outer view of right thigh of Gallus bankiva, partially dissected. s, sartorius; ve, vastus externus; bo and bi, biceps, origin and insertion; tf tensor fascia?; fc, femoro-caudal; a fc, accessory femoro-caudal; st, semitendinosus; ast, accessory semitendinosus; sm, semimembranosus; Ad, adductor; P, pubis; R, rectrices. 40* |
