The great scapular notch (or ''spinoglenoid notch'') is a notch which serves to connect the
supraspinous fossa and
infraspinous fossa. It lies immediately medial to the attachment of the acromion to the lateral angle of the scapular spine.
The
Suprascapular artery
The suprascapular artery is a branch of the thyrocervical trunk on the neck.
Structure
At first, it passes downward and laterally across the scalenus anterior and phrenic nerve, being covered by the sternocleidomastoid muscle; it then cross ...
and
suprascapular nerve
The suprascapular nerve is a nerve that branches from the upper trunk of the brachial plexus. It is responsible for the innervation of two of the muscles that originate from the scapula, namely the supraspinatus and infraspinatus muscles.
Structur ...
pass around the great scapular notch anteroposteriorly.
Supraspinatus
The supraspinatus (plural ''supraspinati'') is a relatively small muscle of the upper back that runs from the supraspinous fossa superior portion of the scapula (shoulder blade) to the greater tubercle of the humerus. It is one of the four rotat ...
and
infraspinatus
In human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa.'' Gray's Anatomy'', see infobox. As one of the four muscles of the rotator cuff, the main function of the infraspin ...
are both supplied by the
suprascapular nerve
The suprascapular nerve is a nerve that branches from the upper trunk of the brachial plexus. It is responsible for the innervation of two of the muscles that originate from the scapula, namely the supraspinatus and infraspinatus muscles.
Structur ...
, which originates from the superior trunk of the brachial plexus (roots C5-C6).
Additional images
File:Great scapular notch - animation01.gif, Left scapula. Great scapular notch shown in red.
File:Great scapular notch - animation04.gif, Animation. Great scapular notch shown in red.
See also
*
Suprascapular notch
*
Suprascapular canal
The suprascapular canal is an anatomical passage between two openings found on the upper dorsal aspect of the shoulder. It is found bilaterally running on superio-lateral aspect of the dorsal surface of the scapula underneath the supraspinatus mus ...
References
External links
* - "Axillary Region: Scapula (Left)"
Scapula
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