. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . of theflexor to the first toe is external to the tendon of theflexor pc^florans digitorum profitndus as it passes theankle-joint. At the back of the tarsus it crosses the latter super-ficially, and then passing directly to the under side of thehind-toe it becomes inserted into the base of its ungualphalanx. Now the larger tendon of the f. j)- digitorwn j)ro-fundus, after arriving at the sole of the foot, trifurcates,and a slij) is sent to the under side of each anterior toe,where passing
. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . of theflexor to the first toe is external to the tendon of theflexor pc^florans digitorum profitndus as it passes theankle-joint. At the back of the tarsus it crosses the latter super-ficially, and then passing directly to the under side of thehind-toe it becomes inserted into the base of its ungualphalanx. Now the larger tendon of the f. j)- digitorwn j)ro-fundus, after arriving at the sole of the foot, trifurcates,and a slij) is sent to the under side of each anterior toe,where passing forwards they too become inserted at thebases of the ungual digits of the respective above this trifurcation the tendons of these twomuscles however, are connected, and that by a fibrousvinculum {¥\g. 65 quat., Vn) which passes between them. THE MUSCLES OF THE LOWER EXTREMITY. 239 The fibres of this vinculum come off from tlie tendonof the jiexor longus halliicis, and pass downwards tosoon merge with the fibres of the tendon of tXia JiexorjDerforans digitorum profundus at the Fig. 6s tei Fig. 65 quat. Fig. 6^ quin. Fig. 65 ter.—Right foot of Mcgalcevii asiatica, showing an arrangement of the plantar 65 quat.—^i^h foot of Gallus bankiva. Vn, vinculum running downwards from the outer hallucial tendon to the inner digital common 65 qioin.—Right foot of Apteryx mantelli. (All three figures copied by the author from Garrod.) The strength and size of the vinculum is differentin nearly every group of birds where it is present. InFig. 65 his, at a, I have shown the position and size of 240 THE MYOLOGY OF THE RAVEN. this vinculum as I found it to be present in the GroundCuckoo. In order to show how different this disposition of theseplantar tendons may be, I quote Garrods description ofhis dissection of the foot of a specimen of Megalcsmaasiatica (Fig. 65 ter.). He says, in this bird the twotendons descend behind the ankle as usu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmuscles, bookyear1890
