Ossification centres of the pectoral girdle

Dr Henry Knipe et al.

Ossification centres of the pectoral girdle can be divided into each of the three bones that form it: clavicle, scapula and proximal humerus.

Ossification centres of the clavicle
  • lateral end: 5 weeks in utero
  • medial end: 15 years
Ossification centres of the scapula
  • body: 8 weeks in utero
  • coracoid process (two centres): 12-18 months
  • glenoid: 10-11 years
  • inferior angle: 14-20 years (puberty)
  • acromion (three centres): 14-20 years (puberty)
  • medial border: 14-20 years (puberty)
Ossification centres of the proximal humerus
  • diaphysis (shaft): 8 weeks in utero
  • head: 1-6 months
  • greater tuberosity: 1 year
  • lesser tubercle: 3-5 years
Upper limb anatomy
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Article information

rID: 24673
Section: Anatomy
Tags: refs, cases
Synonyms or Alternate Spellings:
  • Ossification centres of the clavicle
  • Ossification centres of the scapula
  • Ossification centres of the proximal humerus
  • Shoulder ossification centres
  • Ossification centres of the shoulder
  • Ossification centers of the clavicle
  • Ossification centers of the scapula
  • Ossification centers of the proximal humerus
  • Ossification centers of the shoulder
  • Shoulder ossification centers

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