Osteokinematics
The normal resting angle and position at the humeroulnar joint in the frontal plane
What is 8-15 degrees of valgus
The direction you would glide the humerus to improve abduction
What is inferior glide
The rotator cuff muscle that has a medially directed force vector
What is the supraspinatus
The muscles that provide control of the scapula during elevation of the arm
What are the serratus anterior and trapezius muscles
The direction of force that is resisted by both the medial and lateral collateral ligaments at the elbow
What is longitudinal distraction
The direction the AC joint moves during abduction of the arm
What is upward rotation?
The direction the distal radius would need to glide to improve supination
What is posterior or dorsal glide
The three muscles that provide external rotation at the glenohumeral joint
What are the infraspinatus, teres minor, and posterior deltoid
The direction of the force vector of the subscapularis, infraspinatus, and teres minor
What is toward the glenoid (or inferomedial)
The elbow ligament most likely to be injured from a force directed to the medial side of the elbow
What is the lateral collateral ligament
The natural position of the shoulder that is 30 to 35 degrees anterior to the frontal plane.
What is the plane of the scapula?
The direction your would glide the ulna on the humerus to improve elbow flexion
What is anterior glide
The primary forearm muscle utilized when turning a key counterclockwise in a lock
What is pronator quadratus
The principle that states the nervous systems activates the fewest muscles possible for control of a given movement
What is the Law of Parsimony
The frontal plane movement of the scapula associated with full shoulder abduction
What is posterior tilt
The medial aspect of the trochlea projects more distally than the lateral aspect to cause this
What is the carrying angle
The direction of glide at the SC joint that occurs during clavicular elevation
What is inferior glide
A muscle must originate or insert on this bone to have the ability to supinate or pronate the forearm
What is the radius
This amount of upward rotation of the scapula is a result of SC joint elevation combined with upward rotation at the AC joint
What is 60 degrees
The most prominent motion of the clavicle during shoulder abduction
What is posterior rotation
The three directions in which the clavicle moves when elevating the arm
What are elevation, retraction, and posterior rotation
The direction of glide that occurs at the SC joint during clavicular protraction
What is anterior glide
Forearm position greatly influences this muscle's ability to flex the elbow
What is the biceps brachii
The ratio of glenohumeral elevation to scapular upward rotation during shoulder abduction
What is 2 to 1
The ultimate goal of the coordination of the clavicle, scapula, and humerus
What is to orient the glenoid in the direction the arm needs to go