The lateral supracondylar ridge is a prominent, rough margin on the lower part of the lateral border of the
humerus
The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a rou ...
. It presents an anterior lip for the origin of forearm extensors, including the
brachioradialis muscle above, and the
extensor carpi radialis longus muscle below. It also presents a posterior lip for the
triceps brachii
The triceps, or triceps brachii ( Latin for "three-headed muscle of the arm"), is a large muscle on the back of the upper limb of many vertebrates. It consists of 3 parts: the medial, lateral, and long head. It is the muscle principally respons ...
, and an intermediate ridge for the attachment of the
lateral intermuscular septum.
Clinical significance
The lateral supracondylar ridge may be broken in a
supracondylar humerus fracture, common in
children
A child ( : children) is a human being between the stages of birth and puberty, or between the developmental period of infancy and puberty. The legal definition of ''child'' generally refers to a minor, otherwise known as a person younger ...
.
References
External links
*
Image at u-szeged.hu
Humerus
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