In other tetrapods it has a notch on the dorsal surface which, along with a similar notch on the ventral surface of the scapula, forms the socket in which the proximal end of the humerus (upper arm bone) is located. The acrocoracoid process is an expansion adjacent to this contact surface, to which the shoulderward end of the biceps brachii muscle attaches in these animals. In birds (and generally theropods and related animals), the entire unit is rigid and called scapulocoracoid. This plays a major role in bird flight.
In fish it provides the base for the pectoral fin (FishBase 2006).
Coracoid abnormalities and their relationship with glenohumeral deformities in children with obstetric brachial plexus injury.(Research article)(Report)
Oct 13, 2010; Authors: Rahul K Nath (corresponding author) ; Faiz Mahmooduddin ; Xiaomei Liu ; Melissa J Wentz ; Andrea D Humphries...
Ipsilateral nonunions of the coracoid process and distal clavicle: a rare shoulder girdle fracture pattern.(Report)
Jan 01, 2010; A 40-year-old healthy, right-hand dominant female presented to our institution with persistent right shoulder pain 6 months...