is made up of several muscles
, one of which is the deltoid muscle
that resembles a triangle. The deltoid muscle
is attached to the clavicle, as well as to the scapula
at two distinct points. Three muscle bundles form the deltoid muscle. These bundles stretch over the humerus
and aid in forward arm
flexion, rotation, and bending, as well as in abduction movements of the shoulder
. The deltoid muscle is innervated by the axillary nerve.
Original article published by
. Translated by christelle.b
Latest update on August 19, 2014 at 12:40 PM by christelle.b.