. Cunningham's Text-book of anatomy. Anatomy. THE SCAPULA. 201 Long head of TRICEPS Groove for circum- flex SCAPULAR ARTERY The body of the bone, which is thin and translucent; except along its margins and where the spine springs from it, has three margins and three angles. Of these margins the vertebral (margo vertebralis) is the longest; it stretches from the medial angle above to the inferior angle below. Of curved or somewhat irregular outline, it affords a narrow surface for the insertion of the levator scapula?, rhom- boideus minor, and rhomboideus major muscles. The superior margin, whi
. Cunningham's Text-book of anatomy. Anatomy. THE SCAPULA. 201 Long head of TRICEPS Groove for circum- flex SCAPULAR ARTERY The body of the bone, which is thin and translucent; except along its margins and where the spine springs from it, has three margins and three angles. Of these margins the vertebral (margo vertebralis) is the longest; it stretches from the medial angle above to the inferior angle below. Of curved or somewhat irregular outline, it affords a narrow surface for the insertion of the levator scapula?, rhom- boideus minor, and rhomboideus major muscles. The superior margin, which is thin and sharp, is the shortest of the three. It runs from the medial angle towards the root of the coracoid process, before reaching which, however, it is interrupted by the scapular notch, which lies very close to the medial side of the base of that process. This notch, which is converted into a foramen by a ligament, or occasionally by a spicule of bone, transmits the supra- scapular nerve, whilst the transverse scapular artery runs above it. Attached to the superior margin, close to the notch, is the posterior belly of the omo-hyoid. The axillary margin, so called from its rela- tion to the hollow of the axilla (armpit), is much stouter than either of the others; it ex- tends from the lateral angle above to the inferior angle below. The upper inch or so of this border, which lies im- mediately below the glenoid articular cavity, is rough and tubercular (tuberositas infra- glenoidalis), and affords at- tachment to the long head of the triceps. Below this it is usually crossed by a groove which marks the position of the circumflex scapular artery. The medial angle is sharp and more or less rectangular; the inferior angle is blunter and more acute; whilst the lateral angle corresponds to that part of the bone which is sometimes called the head, and which supports the glenoid cavity and the coracoid process. The glenoid cavity is a piriform articular area, slightly concav
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
