Acromio-Clavicular Articulation. 



85 



106, The Right Acromio -Clavicular Articulation, 



Articulatio acromio-clavicularis. 



The fibrous capsule of this articulation is strengthened by the Liga- 

 mentum acromio - clavicular e ; in the articular cavity there is an inter- 

 articular fib r o - c art ilag e developed in different degrees. 



The clavicle is articulated with the coracoid process by the strong 

 coraco - clavicular ligament, whose internal triangular portion is called 

 conoid ligament, Ligamentum conicum, and its external quadrilateral portion, 

 trapezoid ligament, Ligamentum trapezoides. 



Between the acromion and coracoid processes there is a fibrous 

 band, the strong coraco-acromial ligament. The Incisura semilunaris (supra- 

 scapular notch) at the superior border of the scapula is converted by a 

 transverse ligament, Ligamentum transversum, into a foramen (for the passage 

 of the suprascapular nerve). 



