Motion Capture
Shrug your shoulder and find out
What is scapular elevation?
This muscle generates a powerful pulling force during the front crawl stroke in swimmers and is also heavily relied upon during a pull-up exercise
What is the latissimus dorsi?
This specialized group of muscles enhance the stability of the glenohumeral joint and are named for their capacity to move the shoulder in the transverse plane
What are the rotator cuff muscles?
This smooth, dome-shaped surface on the proximal end of the humerus is covered by articular cartilage to allow for motion in all three planes
What is the humeral head?
Tissue that attaches to the superior labrum after extending through the intertubercular groove
What is the biceps tendon?
This transverse plane motion at the shoulder is critical for activities like a bench press and push up
horizontal adduction
This muscle is a multi-pennated muscle that covers the shoulder joint allowing for it to flex and extend the shoulder as well as internally and externally rotate the shoulder
What is the deltoid muscle?
Found between the acromion process and the humeral head, this area is home to the supraspinatus tendon and a bursa – often can lead to an uncomfortable “pinch” when aggravated
What is the subacromial space?
This non-articulating process on the scapula that resembles a “crow’s beak”, serves as a primary attachment site for three muscles
What is the coracoid process?
Named for an early physician in the field of neurology, the most superficial point on the brachial plexus along the supraclavicular region
What is Erb’s point?
This scapular motion leads to the glenoid fossa turning up and the inferior angle moving laterally
What is scapular upward rotation?
Latissimus dorsi's "little helper"
What is the teres major?
Found at the junction between the axial and appendicular skeleton, this joint of the shoulder contains a small fibrocartilaginous disc to allow for "hinging" and "pivoting"
What is the sternoclavicular joint?
This bony surface serves as the primary insertion for the upper, middle and lower trapezius muscles and leads to the acromion process laterally
What is the spine of the scapula?
Lesion occurring to the cartilaginous rim of tissue near the attachment of the biceps tendon
What is a SLAP lesion?
These three shoulder motions comprise the Upper Extremity Pattern 1 assessment in the SFMA Top Tier
What are extension, adduction, and medial rotation?
Named for its anatomical location and course through the “armpit”, this structure provides messages to the deltoid and teres minor muscles
What is the axillary nerve?
The only joint of the shoulder that involves only dynamic stabilizers rather than those static tissues
What is the scapulothoracic joint?
This depression on the superior border of the scapula serves as a crucial passageway for this aptly named nerve
What is the suprascapular notch?
Serving as the primary attachment for the long head of the triceps, this landmark is found along the lateral border of the scapula just below of the glenoid fossa
What is the Infraglenoid tubercle?
An alteration in the normal position or motion of the scapula during coupled scapulohumeral movements
What is scapular dyskinesis?
Often associated with poor posture or rounded shoulders when tight, this muscle can also compress the brachial plexus nerves and axillary blood vessels beneath it, causing shoulder/arm numbness, weakness, and pain
What is the pectoralis minor?
A normal anatomical variant of the shoulder, occurring in 1.5%–6.5% of people, defined by the absence of the anterosuperior labrum (1–3 o'clock position) and a thickened, cord-like middle glenohumeral ligament (MGHL)
What is the Buford complex?
This non-articulating landmark serves as an attachment site for the subscapularis and helps form the medial lip of the intertubercular groove
What is the lesser tubercle?
Area in the posterior aspect of the shoulder formed by the borders of the teres major, teres minor, long head of the triceps and humeral shaft that serves as a vital conduit for the axillary nerve and an important artery of the shoulder (posterior humeral circumflux artery)
What is the quadrangular (quadrilateral) space?