A&P HOME A&P TABLE OF CONTENTS   OBL HOME OBL REFERENCES
HUMERUS

ad fits into glenoid cavity of the scapula

--in anterior view, greater & lesser tubercles

--(supraspinatus, infraspinatus, teres minor, & pectoralis major attach to greater tubercle; subscapularis attaches to lesser tubercle; latissimus dorsi to the intertubercular sulcus)

--although the anatomical neck of the humerus lies between the head & tubercles, the surgical neck (just distal to the tubercles) is important because it is so frequently fractured

--in the lateral middle of the humerus is a roughened "V" of the deltoid tuberosity where deltoid inserts

--medial & lateral epicondyles: where many muscles that move the wrist & fingers originate

--you can feel both epicondyles; if you press the ulnar nerve just under the medial epicondyle, you will feel your fingers tingle

--trochlea articulates with trochlear notch of ulna; capitulum with the head of the radius (head wears a cap)

--the olecranon fossa holds the olecranon (elbow) when forearm is extended

HUMERUS HUMERUS
HUMERUS HUMERUS
HUMERUS HUMERUS
HUMERUS HUMERUS
HUMERUS
HUMERUS HUMERUS
HUMERUS HUMERUS
HUMERUS HUMERUS
HUMERUS