Osseous
The structure has three facets to serve as attachment sites for muscles.
What is the greater tubericle?
This is a psudo-articulation.
What is the scapulothoracic joint (ST)?
This ligament has two components, the conoid and trapezoid bands.
What is the coracoclavicular ligament?
These muscles insert on the superior, middle and inferior facets of the greater tubercle respectfully.
The radial nerve and profunda brachii artery pass through this anatomical interval.
**Right by the radial (spiral) groove
This fossa is pear shaped with the apex pointing superiorly.
What is the glenoid fossa?
This joint is very incongruent but the overall motion occurs here.
What is the acromioclavicular joint (AC)?
This ligament connects the superior aspects of the clavicles together.
What is the interclavicular ligament?
This muscle helps maintain the scapula on the thorax and have better humeral elevation due to its 5/8th attachment on the inferior border of the scapula.
What is the serratus anterior?
This space is formed by the shaft of the humerus laterally, long head of the triceps medially, teres minor superiorly and the teres major inferiorly?
What is the quadrangular space?
This bone is convex anteriorly on the medial side but concave anteriorly on the lateral side.
What is the clavicle?
This joint changes its arthrokinematic motion depending on the osteokinematic motion.
Serves as an arc/roof for the subacromial space.
What is the coracoacromial ligament?
What is the deltoid?
Scapular and clavicular elevation will create this type of rotation at the AC joint.
What is downward rotation?
This structure serves as a place for profunda brachial artery and radial nerve to lie in.
What is the radial (spiral) groove?
The longitudinal and horizontal surfaces are half the size as its articulating part at this joint.
What is the glenohumeral joint (GH)?
What is the costoclavicular ligament?
These three muscles adduct or externally rotate at the AC joint, the scapula to put compression through the clavicle and support the arm.
What are the middle and lower trapezius and the rhomboids?
Elevation of the SC joint + Upward rotation of the scapula =
This bone is concave in the frontal plane and convex in the sagittal plane.
What is the manubrium?
What is the glenohumeral joint (GH)?
What is the coracohumeral ligament?
This muscle will internally rotate the humeral head but also anteriorly translate it. If lack of balance, this will create a common glenohumeral syndrome.
What is the pectoralis major?
As the scapula upwardly rotates, a ligament will pull from the inferior aspect of the clavicle creating an anterior and inferior force on it.
What is the overall motion of the clavicle?
What is posterior rotation along the long axis?