Identifier: educationofdeafm00thom (find matches)
Title: Education of Deaf-Mutes : A Manual for Teachers
Year: 1888 (1880s)
Authors: Thomas Arnold
Subjects: Education
Publisher: Wertheimer, Lea & Co.
Contributing Library: American Printing House for the Blind, Inc., M. C. Migel Library
Digitizing Sponsor: American Printing House for the Blind, Inc.

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ds to the middle of the back ; 1j, deltoid ; c, acromionprocess ; latissimus dorsi; in the angle between this and the trapeziusis seen a part of the spinalis dorsi; c, external oblique abdominal muscle ;/, infra-spinatus ; r/, teres major ; h, teres minor (the part of the muscle onthe left of li belongs to the infra-spinatus). ,r, levator anguli scapulas; s, placed on the oval tendon between thetwo trapezius muscles, points to the upper part of the serratus posticussuperior (the darker strip) ; 1, splenius capitis ; 1, lower end of spleniuscolli ; 2, a small part of the scalenus posticus ; 3. rhomboideus major ;4, rhomboideus minor; 5, infra-spinatus ; G, supra-spinatus ; 7, teresmajor ; 8, long head of the triceps ; 9, teres minor ; 10, serratus magnus ;11, 11, upper and lower portions of the serratus posticus inferior; 12,internal oblique muscle of the abdomen ; 13, part of the spinalis dorsi;11, part of the longissimus dorsi; 15, tendons of the ilio-costalis ; i, crestof the ilium.
Text Appearing After Image:
F(^. S. - I 1 i I. OF DEAF-MUTES. 171 Its principal office is to raise the arms, but it can also movethem backwards and forwards, and therefore favours in-spiration. The gymnastic exercises already described areadapted to its development. Serratus posticus superior (Fig. 5), a thin flat muscleIts upper attachment is chiefly to the spines of the lastcervical, and two or three upper dorsal vertebrge. The lowerattachment is to the second, third, fourth, and fifth ribs, alittle beyond their angles. Its function is to elevate the upper ribs, and it is there-fore a muscle of inspiration. Serratus posticus inferior (Fig. 5, ii). The lowerattachment is to the spines of the lower two dorsal and uppertwo or three lumbar vertebrae, passing outwards, upwardsand forwards. It is attached by four fleshy digitations to thelower borders of the last four ribs. Its function is to draw the lower ribs downwards andmore backwards, and therefore it is a muscle of expiration,but it is also a muscle of inspir

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