. The comparative anatomy of the domesticated animals. Veterinary anatomy. OENEEAL CONSIDERATIONS ON TEE STRIPED MUSCLES. 235 Fig. with the length of its fibres ; for the latter alone give an indication of the possible degree of shortening it is capable of—this shortening being estimated at one- fourth the length of its contractile fibres. In glancing at the different an'ange- ments shown in Fig. 152, it will be seen that, with muscles which have the same total length, that of the contractile elements varies within extensive limits. C. Vessels and Nerves.—The muscular tissue receives muc
. The comparative anatomy of the domesticated animals. Veterinary anatomy. OENEEAL CONSIDERATIONS ON TEE STRIPED MUSCLES. 235 Fig. with the length of its fibres ; for the latter alone give an indication of the possible degree of shortening it is capable of—this shortening being estimated at one- fourth the length of its contractile fibres. In glancing at the different an'ange- ments shown in Fig. 152, it will be seen that, with muscles which have the same total length, that of the contractile elements varies within extensive limits. C. Vessels and Nerves.—The muscular tissue receives much blood ; the fibrous tissue very little. The arteries are large and numerous, and each is accompanied by two veins. The capillary vessels anastomose in such a manner as to form rectangular meshes, the greatest diameter of which is directed towards the length of the muscle. Ranvier has remarked that, in the dark muscles of the Rabbit, the vascular network has varicose formations which retain a considerable mass of blood in the interior of the muscles. The lymphatic vessels of the muscles are few ; they sometimes penetrate their interior in following the capillaries; at other times they remain on the sm-face, in the external perimy- sium. The existence of lymphatics has not yet been demonstrated in tendons, aponeuroses, or synovial membranes. The nerves emanate from the cerebro-spinal centre. At their tenninal extremity they offer a small enlargement, called by Rouget the motor end plate, and by Doyere and Kiihne the nervous colline (hillock). It is admitted that the motor tube traverses the sarcolemma, there losing its envelope ; and that the substance of the axis- cylinder is spread over the surface of the muscular fibrillae to form the motor plate. Physico-chemical Properties of Striped Muscles. Muscles are soft organs, remarkable for their more or less deep-red colour, which varies with the species, and even with the age and health of animals of the same species. By desi
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