Oblique ridges of scapula

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Oblique ridges of scapula

Costal surface of left scapula. Oblique ridges indicated by black arrows.

Costal surface of left scapula. Oblique ridges are not labeled, but visible at the center.

Details
Identifiers
Latin| lineae musculares scapulae
Anatomical terms of bone

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The oblique ridges cross the subscapular fossa from superomedial to inferiolateral (parallel to scapular spine). These ridges are formed by intramuscular tendons of the subscapularis muscle.[1]

The costal or ventral surface of the scapula presents a broad concavity, the subscapular fossa. The medial two-thirds of the fossa are marked by several oblique ridges, which run lateralward and upward. The ridges give attachment to the tendinous insertions, and the surfaces between them to the fleshy fibers, of the subscapularis muscle.[2]

## Additional images

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* Costal surface of left scapula. Oblique ridges are visible at the center.

* Subscapularis muscle (shown in red).

## See also

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* Subscapular fossa
* Subscapularis muscle

Wikimedia Commons has media related to Oblique ridges of scapula.

## References

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This article incorporates text in the public domain from page 202 of the 20th edition of Gray's Anatomy (1918)

1. ^ Tim D. White, Michael T. Black, Pieter A. Folkens "Human Osteology, Third Edition" Academic Press ISBN 978-0123741349 pp.165-172
2. ^ Gray's Anatomy 1918, see infobox

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Bones of the arm

Shoulder girdle, clavicle|

* conoid tubercle
* trapezoid line
* costal tuberosity
* subclavian groove

Scapula|

* fossae (subscapular, supraspinatous, infraspinatous)
* notches (suprascapular, great scapular)
* glenoid fossa
* tubercles (infraglenoid, supraglenoid)
* spine of scapula
* acromion
* coracoid process
* angles (superior, inferior, lateral)

Humerus|

* upper extremity: necks (anatomical, surgical)
* tubercles (greater, lesser)
* bicipital groove
* body: radial sulcus
* deltoid tuberosity
* lower extremity: capitulum
* trochlea
* epicondyles (lateral, medial)
* supracondylar ridges (lateral, medial)
* fossae (radial, coronoid, olecranon)

Forearm|

| Radius|

* near elbow (head, tuberosity)
* near wrist (ulnar notch, styloid process, Lister's tubercle)

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Ulna|

* near elbow (tuberosity, olecranon, coronoid process, radial notch, trochlear notch)
* near wrist (styloid process)

Hand|

| Carpal bones|

* scaphoid
* lunate
* triquetral
* pisiform
* trapezium
* trapezoid
* capitate
* hamate
* hamulus

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Metacarpal bones|

* 1st
* 2nd
* 3rd
* 4th
* 5th

Phalanges|

* proximal
* intermediate
* distal

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