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  2. Acromion - Wikipedia

    en.wikipedia.org/wiki/Acromion

    In human anatomy, the acromion (from Greek: akros, "highest", ōmos, "shoulder", pl.: acromia) is a bony process on the scapula (shoulder blade). Together with the coracoid process, it extends laterally over the shoulder joint. The acromion is a continuation of the scapular spine, and hooks over anteriorly.

  3. Olecranon - Wikipedia

    en.wikipedia.org/wiki/Olecranon

    The olecranon (/ oʊ ˈ l ɛ k r ə n ɒ n /, from Greek olene 'elbow' and kranon 'head'), is a large, thick, curved bony process on the proximal, posterior end of the ulna.It forms the protruding part of the elbow and is opposite to the cubital fossa or elbow pit (trochlear notch).

  4. Humerus - Wikipedia

    en.wikipedia.org/wiki/Humerus

    The lower extremity consists of 2 epicondyles, 2 processes (trochlea and capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its surgical neck due to its tendency to fracture, thus often ...

  5. Shoulder girdle - Wikipedia

    en.wikipedia.org/wiki/Shoulder_girdle

    It is formed by the gap between the humerus and the acromion process of the scapula. This space is filled mostly by the subacromial bursa and the tendon of supraspinatus. This joint plays a role during complex movements while the arm is fully flexed at the glenohumeral joint, such as changing a lightbulb, or painting a ceiling.

  6. Anthropometry of the upper arm - Wikipedia

    en.wikipedia.org/wiki/Anthropometry_of_the_upper_arm

    [3] [4] The measuring point is halfway between the olecranon process of the ulna and the acromion process of the scapula. [4] [5] [6] The mid-upper arm circumference is the circumference of the upper arm at that same midpoint, measured with a non-stretchable tape measure [2] [3] [4] [6] or 3D printable bands. [7]

  7. Olecranon fossa - Wikipedia

    en.wikipedia.org/wiki/Olecranon_fossa

    The olecranon fossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea. It provides space for the olecranon of the ulna during extension of the forearm .

  8. Shoulder impingement syndrome - Wikipedia

    en.wikipedia.org/wiki/Shoulder_impingement_syndrome

    One action the scapula performs during a throwing or serving motion is elevation of the acromion process in order to avoid impingement of the rotator cuff tendons. [8] If the scapula fails to properly elevate the acromion, impingement may occur during the cocking and acceleration phase of an overhead activity.

  9. Trochlear notch - Wikipedia

    en.wikipedia.org/wiki/Trochlear_notch

    About the middle of either side of this notch is an indentation, which contracts it somewhat, and indicates the junction of the olecranon and the coronoid process. The notch is concave from above downward, and divided into a medial and a lateral portion by a smooth ridge running from the summit of the olecranon to the tip of the coronoid process.