Shoulder Girdle Complex
The anatomical name for the ball-and-socket joint at the shoulder
What is the glenohumeral joint
The four rotator-cuff muscles
What are the supraspinatus, infraspinatus, teres minor, and subscapularis
When the space between the humeral head and the acromion becomes narrowed
What is impingement syndrome
A dislocation in the anterioinferior direction
What is an anterior shoulder dislocation
Indicates anterior shoulder instability
What is the Anterior Apprehension test
The number of joints that make up the shoulder girdle
What are three joints
A group of muscles working together enhancing the movement of a joint
What is synergistically
The head of the biceps tendon that lies adjacent to the rotator-cuff
What is the long head
A condition in which an athlete is able to voluntarily dislocate their shoulder
Test involves athlete lowering their arm to the side
What is Drop-Arm sign
The anterior projection of the scapula
What is the acromion process
Muscles providing additional support for the SITS muscles
What are the deltoid, pectoralis major, latissimus dorsi, and teres major
What is a muscle strain
A stinger or burner
What is an injury to the brachial plexus
Produces noticeably weak C3 and C4 motor functions
Hawkins Kennedy test
Concave projection of the scapula
What is the glenoid fossa
Function is to elevate the scapula
What is the levator scapulae
Can be detected using an X-ray or an MRI
What is a rotator-cuff tear
Sprain causing partial tearing of AC joint ligaments
What is a second-degree AC sprain
Tests for glenoid labrum tears
What is the Clunk test
The origin of the serratus anterior
What are the 8th and 9th ribs
The deltoid and rotator-cuff muscles produce what
What is a force couple
Causes a deformity known as a "popeye" muscle
What is a biceps tendon rupture
Traumatic sprains to the acromioclavicular joint
What is an acromioclavicular separation
A positive sign is gapping between the lateral acromion and humeral head
What is Sulcus sign