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The medial portion of the articular surface of the humerus is named the trochlea, and presents a deep depression between two well-marked borders; it is convex from before backward, concave from side to side, and occupies the anterior, lower, and posterior parts of the extremity.
It articulates with the ulna.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Bones of upper limbs |
| pectoral girdle, clavicle: conoid tubercle - trapezoid line - costal tuberosity - subclavian groove
scapula: spine of scapula - suprascapular notch - acromion - glenoid cavity - glenoidal labrum - coracoid process
fossae (subscapular, supraspinatous, infraspinatous) borders (superior, lateral/axillary, medial/vertebral) angles (superior, inferior, lateral) tubercles (infraglenoid, supraglenoid)
humerus: upper extremity - necks (anatomical, surgical) - tubercles (greater, lesser) - intertubercular groove
body - radial sulcus - deltoid tuberosity
lower extremity - capitulum - trochlea - epicondyles (lateral, medial) - supracondylar ridges (lateral, medial) - fossae (radial, coronoid, olecranon)
ulna: upper extremity (olecranon, coronoid process, tuberosity, radial notch, semilunar notch) - body of ulna - lower extremity (styloid process)
radius: upper extremity (tuberosity) - body - lower extremity (ulnar notch, styloid process)
carpus: scaphoid - lunate - triquetral - pisiform - trapezium - trapezoid - capitate - hamate (hamulus)
metacarpus: 1st metacarpal - 2nd - 3rd - 4th - 5th
phalanges of the hand
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