SHOULDER/PECTORAL GIRDLE: CLAVICLE AND SCAPULA

TUBEROSITY (COSTAL IMPRESSION) of CLAVICLE

lies on medial end (sternal extremity) of the inferior surface of the CLAVICLE, anchors costoclavicular ligament

SUBCLAVIAN SULCUS/GROOVE of CLAVICLE

runs along the posteroinferior quadrant of the mid-shift, an insertion for the subclavius muscle between the CLAVICLE and RIBs cage

CONOID TUBERCLE of CLAVICLE

on lateral end (acromial extremity) of the CLAVICLE, located posteriorly

TRAPEZOID LINE/OBLIQUE RIDGE of CLAVICLE

leads laterally from the conoid tubercle, attachment site for the trapezoid ligament

SUPERIOR SURFACE of CLAVICLE

holds rugosities/attachment sites for several muscles;

-rugosities of posterolateral surface mark attachment of trapezius muscle,

-rugosity on anterolateral surface is for deltoideus muscle,

-rugosity on anteromedial surface anchors part of pectoralis major muscle

SUPERIOR BORDER of SCAPULA

superior edge of SCAPULA, shortest + most irregular border of SCAPULA

SCAPULAR NOTCH/FORAMEN

variable feature, on superior border, semicircular notch formed partly by base of CORACOID PROCESS, transmits suprascapular nerve

CORACOID PROCESS of SCAPULA

juts anteriorly and superolaterally from superior border of the SCAPULA, projection that anchors variety of muscles and ligaments

SUBSCAPULAR FOSSA

fossa/attachment for SUBSCAPULARIS MUSCLE, dominates anterior surface of SCAPULA

OBLIQUE RIDGES of SCAPULA

cross SUBSCAPULAR FOSSA from superolateral to inferomedial, formed by intramuscular tendons of subscapularis muscle

LATERAL/AXILLARY BORDER of SCAPULA

anteroposteriorly thickest border - thicker than MEDIAL BORDER, usually slightly concave, attachment site for TERES MINOR muscle

GLENOID CAVITY/FOSSA of SCAPULA

shallow, vertically elongate concavity that recieves head of HUMERUS

SUPRAGLENOID TUBERCLE of SCAPULA

sits adjacent to superior edge of GLENOID FOSSA, at base of CORACOID, anchors bicep muscle and flexor of arm/forearm

INFRAGLENOID TUBERCLE of SCAPULA

sits adjacent to inferior edge of GLENOID FOSSA, gives origin to triceps muscle

SCAPULAR NECK

slightly constricted region just medial to the GLENOID FOSSA

MEDIAL/VERTEBRAL BORDER of SCAPULA

straightest, longest, and thinnest border of SCAPULA

SCAPULAR SPINE

dominates posterior surface of SCAPULA, passes dio-laterally across the surface, merging medially with the LATERAL BORDER and projecting laterally as ACROMION PROCESS

ACROMION (PROCESS) of SCAPULA

lateral projection of SCAPULAR SPINE, attachment site for several muscles

SUPRASPINOUS FOSSA of SCAPULA

large, mediolaterally elongate hollowing superior to the base of the SCAPULAR SPINE, attachment site of *SUPRASPINATUS MUSCLE

INFRASPINOUS FOSSA of SCAPULA

hollowing inferior to the SCAPULAR SPINE, attachment site of *INFRASPINATUS MUSCLE

SUPERIOR ANGLE of SCAPULA

where the SUPERIOR and MEDIAL BORDERS intersect

INFERIOR ANGLE of SCAPULA

where the MEDIAL and LATERAL BORDERS intersect, *thicker than SUPERIOR ANGLE

what is the muscle attachment of the SUBSCAPULAR SURFACE on the SCAPULA?

SUBSCAPULARIS MUSCLE

what is the muscle attachment of the SUPRASPINOUS FOSSA on the SCAPULA?

SUPRASPINATUS MUSCLE

what is the muscle attachment of the INFRASPINOUS FOSSA on the SCAPULA?

INFRASPINATUS MUSCLE

what is the muscle attachment of the LATERAL BORDER on the SCAPULA?

TERES MINOR MUSCLE

what is the bone that all the SCAPULAR muscles attach to?

HUMERUS