1.4.6. Movement of the Glenohumeral Joint Flashcards
What Type of Joint is the Glenohumeral Joint?
Synovial Ball and Socket Joint
What are the Movements which can occur at the Glenohumeral Joint?
- Extension
- Flexion
- Abduction
- Adduction
- Medial rotation
- Lateral Rotation
What movement is produced by Extension at the Glenohumeral Joint?
The Upper Limb travels Backwards, in the Sagittal Plane
What Muscles produce Extension at the Glenohumeral Joint?
- Posterior Deltoid
- Latissimus Dorsi
- Teres Major
What movement is produced by Flexion at the Glenohumeral Joint?
The Upper Limb travels Forwards, in the Sagittal Plane
What Muscles produce Flexion at the Glenohumeral Joint?
- (Both Heads of the) Biceps Bracii
- Pectoralis Major
- Anterior Deltoid
- Corachobrachialis
What movement is produced by Abduction at the Glenohumeral Joint?
The Upper Limb travels Away from the Midline, in the Coronal Plane
What Muscle produces Abduction at the Glenohumeral Joint, from 0-15 degrees?
Supraspinatus
What Muscle produces Abduction at the Glenohumeral Joint, from 15-90 degrees?
Middle Fibres of the Deltoid
What needs to happen to allow for Abduction at the Glenohumeral Joint beyond 90 degrees?
Scapula Rotation
What Muscles cause Scapula Rotation, to allow for Abduction at the Glenohumeral Joint beyond 90 degrees?
- Trapezius
2. Serratus Anterior
What movement is produced by Adduction at the Glenohumeral Joint?
The Upper Limb travels Towards the Midline, in the Coronal Plane
What Muscles produce Adduction at the Glenohumeral Joint?
- Pectoralis Major
- Latissimus Dorsi
- Teres Major
What movement is produced by Medial Rotation at the Glenohumeral Joint?
Rotation Towards the Midline, so that the Thumb is pointing Medially
What Muscles produce Medial Rotation at the Glenohumeral Joint?
- Subscapularis
- Pectoralis Major
- Latissimus Dorsi
- Teres Major
- Anterior Deltoid