File:Anatomy, descriptive and surgical (electronic resource) (1860) (14578028699).jpg

Identifier: b20386424 (find matches)
Title: Anatomy, descriptive and surgical (electronic resource)
Year: 1860 (1860s)
Authors: Gray, Henry, 1825-1861 Carter, H. V., ill Westmacott, John Guise, Dr, ill
Subjects: Anatomy
Publisher: London : J.W. Parker
Contributing Library: Wellcome Library
Digitizing Sponsor: Wellcome Library

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ortion above the spine is called the supra-spinousfossa, and that below it, the infra-spinous fossa. The supra-spinous fossa, the smaller of the two, is concave, smooth, andbroader at the vertebral than at the humeral extremity. It affords attachment byits inner two-thirds to the Supra-spinatus muscle. The infra-spinous fossa is much larger than the preceding; towards its ver-tebral margin a shallow concavity is seen at its upper part; its centre presents a SCAPULA. 93 prominent convexity, whilst towards the axillary border is a deep groove, Avhichruns from the upper towards the lower part. The inner three-fourths of thissurface afford attachment to the Infra-spinatus muscle; the outer fourth is on,lycovered by it, without giving origin to its fibres. This surface is separated fromthe axillary border by an elevated ridge, which runs from the lower part of theglenoid cavity, downwards and backwards to the posterior border, about an inch 85.—Left Scapula. Posterior Surface, or Dorsum.
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above the inferior angle. This ridge serves for the attachment of a strong apo-neurosis, which separates the Infra-spinatus from the two Teres muscles. Thesurface of bone between this line and the axillary border is narrow for the uppertwo-thirds of its extent, and traversed near its centre by a groove for the passageof the dorsalis scapulae vessels; it affords attachment to the Teres minor. Itslower third presents a broader, somewhat triangular surface, which gives originI to the Teres major, and over which glides the Latissimns dorsi; sometimes the 94 OSTEOLOGY. I latter muscle takes origin by a few fibres from this part. The broad and narrow portions of bone above alluded to are separated by an oblique line, which runs ^from the axillary border, downwards and backwards; to it is attached the aponeu-rosis separating the two Teres muscles from each other. y The Spine is a prominent plate of bone, which crosses obliquely the inner !four-fifths of the dorsum of the scapula at its upper

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