It is the largest and longest bone of the upper limb. It articulates with the shoulder blade at the shoulder joint and with the radius and ulna at the elbow joint. It has two epiphyses and one diaphysis.
Humerus Head & #8211; Articulates with the glenoid cavity of the scapula
Greater Tuber & #8211; It is located laterally to the head and the smaller tuber
Smaller Tuber & #8211; It projects medially just below the lap
Anatomical neck & #8211; Form an obtuse angle with the body
Intertubercular Groove & #8211; Deep groove separating the two tubers
Trochlea & #8211; Similar to a spool. Articulates with the ulna.
Chapter & #8211; Smooth and rounded eminence. Articulates with the radio.
Medial Epicondyle & #8211; It is located medially to the trochlea.
Lateral Epicondyle & #8211; Small tuberculate eminence. Located laterally to the chapter.
Coronoid Fossa & #8211; Small depression that receives the coronoid process of the ulna in the flexion of the forearm
Radial Fossa & #8211; Little depression
Olecranon Fossa & #8211; Deep triangular depression that receives the olecranon in the extension of the forearm.
Ulnar Nerve Groove & #8211; Depression located inferiorly to the medial epicondyle.
Deltoidea tuberosity & #8211; Rough triangular elevation for deltoid muscle insertion
Radial Nerve Groove & #8211; Wide and shallow oblique depression
THE Humerus articulates with three bones: the Scapula, the Radio and the Ulna.
|UMBER & #8211; PREVIOUS AND REAR VIEW
|Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21st. Rio de Janeiro: Guanabara Koogan, 2000.|
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