Structure and Function of the Shoulder Complex
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12 Terms
at what degree is the glenoid fossa oriented in the frontal plane?
30 degrees
in which directions is the humeral head oriented and rotated?
medially/superiorly, rotated 30 degrees
what is the angle of inclination of the humeral head in the frontal plane?
130-150 degrees
motion at which two joints produces motion at the ST joint? (scapulothoracic)
SC and AC joint
what structure in the sternoclavicular joint functions as a shock absorber while enhancing the stability of the joint?
fibrocartilage disc
what is normal ROM of elevation in the frontal plane for SC joint kinematics?
45-48 degrees
what is normal ROM of depression in the frontal plane for SC joint kinematics?
10 degrees
what is normal ROM of protraction in the horizontal plane for SC joint kinematics?
15-20 degrees
what is normal ROM of depression in the horizontal plane for SC joint kinematics?
30 degrees
what is normal ROM of posterior rotation in the for SC joint kinematics?
50 degrees
is which direction does roll and slide happen during elevation and depression in the SC joint?
opposite
is which direction does roll and slide happen during protraction and retraction in the SC joint?
same