The Skeletal System: The Appendicular Division

marks the origin of the long head of the triceps brachii muscle, an equally prominent muscle on the posterior surface of the arm

cross the scapular body before ending at the medial border

supra - above; the area superior to the spine; an attachment for the supraspinatus muscle

infra - beneath; the region inferior to the spine; an attachment for the infraspinatus muscle

the proximal bone of the upper limb

of the humerus; articulates with the scapula at the glenoid cavity

of the humerus; a large projection at the lateral edge of the epiphysis

lies on the anterior and medial surface of the epiphysis

separates the greater and lesser tubercles

a constriction inferior to the head of the humerus, marks the distal limit of the capsule of the shoulder joint

distal to the tubercles; narrow; corresponds to the metaphysis of the growing bone

proximal; of the humerus; is round in cross section

elevated; runs along the lateral border of the shaft, extending more than halfway down its length

an articular; dominates the distal, inferior surface of the humerus

trochlea - pulley; the spool-shaped medial portion that articulates with the ulna, the medial bone of the forearm

corona - crown; the trochlea extends from its base