OSTEOLOGY-CLAVICLE

SUMMARY

Medial 2/3 is rounded & lateral 1/3 is flat in cross-section; lower surface:

1. Oval pit: lateral to the (sternoclavicular) articular surface, for attachment of the costoclavicular ligament.

2. Groove for the subclavius: lateral to the oval pit.

3. Conoid tubercle: near the flat posterior border the clavicle, for attachement of the conoid ligament.

4. Trapezoid ridge: extends obliquely from the conoid tubercle to the (acromioclavicular) articular facet of the clavicle, for the trapezoid ligament.

5. Fracture of the clavicle is commonly between the costoclavicular & coracoclavicular ligaments.

INFERIOR SURFACE


SUPERIOR SURFACE


Image: Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. www.bartleby.com/107/ [Accessed 16 Apr. 2019].

Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.