Quain's elements of anatomy . ontinued intothe muscular substance. In reality, how-ever, the fibres of each tendon-bundle endabruptly on reaching the rounded or obliquelytruncated extremity of a muscular fibre (), and are so intimately united to the pro-longation of sarcolemma which covers the ex-tremity, as to render the separation betweenthe two difficult if not impossible (Ranvier).The muscular substance, on the other hand,may readily be caused to retract from thesarcolemma at this point. The areolar tissuewhich lies between the tendon-bundles, passesbetween the ends of the muscular
Quain's elements of anatomy . ontinued intothe muscular substance. In reality, how-ever, the fibres of each tendon-bundle endabruptly on reaching the rounded or obliquelytruncated extremity of a muscular fibre (), and are so intimately united to the pro-longation of sarcolemma which covers the ex-tremity, as to render the separation betweenthe two difficult if not impossible (Ranvier).The muscular substance, on the other hand,may readily be caused to retract from thesarcolemma at this point. The areolar tissuewhich lies between the tendon-bundles, passesbetween the ends of the muscular fibres and isgradually lost in the interstitial connectivetissue of the muscle. When the direction of the muscular fibresis oblique to that of the tendon, the con-nection takes place in a similar way to thatabove described, but the small tendon bundlesare given off laterally along the course of theFig. 127.—Tekjiixation of a tendon, which in these cases is generallyMUSCULAR FIBRE i^ TKNDON prolougcd luto or ovcr the (Ranvier m, sarcolemma ; s, the passing over the endof the fibre; p, extremity ofmuscular substance, c, retractedfrom the lower end of the sarco- When the muscular fibres divide, eachbranch of the fibre is described as beingdirectly continuous with a tendon-bundle, orconnective tissue bundle, without the inter-vention of sarcolemma, but it is not im-lemma-tube; t, tendon-bundle probable that renewed careful investigationpassmg to be fixed to the sarco- ^^igiit^ j^ tj^ig cagg also, disclose the existencelemma. ^^ ^ ^l^j^ prolongation of sarcolemma over the —The blood-vessels of the muscular tissue are veryabundant, so that, when they are successfully filled with coloured injec-tion, the fleshy part of the muscle contrasts strongly Avith its arteries, accompanied by their associate veins, enter the muscle atvarious points, and divide into branches : these pass among the fasciculi,crossing over them, and di
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