File:The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds (1890) (14729164186).jpg

Identifier: myologyofravencoc00shuf (find matches)
Title: The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds
Year: 1890 (1890s)
Authors: Shufeldt, Robert W. (Robert Wilson), 1850-1934
Subjects: Ravens -- Anatomy Birds -- Anatomy Muscles
Publisher: London, New York, Macmillan and co.
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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particular in these details because I have experiencedno little difficulty myself in properly comprehendingthese parts, and it is simply out of the question todo it at all hj a hasty dissection. ^v Now it will be seen, as a sort of a first introductionto these parts, that the hind toe or first toe is under thecontrol of two tendons (whatever their muscles may beabove) : the first of these is the delicate little extensorhaUucis hrevis (Fig. 60) already described, and thesecond a powerful flexor tendon running along under-neath its basal joint. This tendon at the back of thetarso-metatarsus ossifies, and the bone is usually some-thins; long;cr than two centimetres. Others of the laro-ertendons in the same situation do the same thing in oldspecimens. These bones are shown at the back of thetarso-metatarsus in Figs. 49 and 60. Confining ourselves now to the sole of the foot in thiscursory examination, we see that the second toe (withtwo joints and a claw) is served by three tendons coming
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tiZialis ^ostlctxs Fig. 64.—Outer aspect of the left pelvic limb of a Raven, showingthe third layer of muscles of the thigh and leer. Thestump of the hiccps has been left in position, and thehorizontal little band of tendon binding the head ofthe flexor perforaMos indicis primus pedis to the iibula,as well as affording support to the bicipital loop, isshown, a = a dissecting chain pulling back the tendonof the flexorper/oratus annularis primus pedis muscle ;and b, accomplishing the same for the tendon of the flexor perforatusmcdius prmius pedis muscle. Life-size, by the autJior, from his owndissections. THE MUSCLES OF THE LOWER EXTREMITY. 225 from muscles at the back of the leg. One of theseperforates the other two, and runs the entire length ofthe toe, to become inserted at the tubercle at the underside of the bony core of the claw or the ungual phalanx.Of the two perforated tendons the longer one is insertedat the distal end of the, basal phalanx, and the shorterone at the middle

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