Upper Extremity JM1

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What is the name of the joint formed by the scapula and the posterior thoracic wall?

scapulothoracic joint (not a true joint)
List all the possible movements of the scapulothoracic joint.
- Elevation/Depression
- Protraction/Retraction
- Upward Rotation/Downward Rotation
What muscles produce Elevation at the scapulothoracic joint?
- Upper trapezius fibers (unilaterally)
- Rhomboid major & minor
- Levator scapula (unilaterally)
What muscles produce Depression at the scapulothoracic joint?
- Lower trapezius fibers
- Serratus anterior (w/origin fixed)
- Pectoralis minor
What muscles produce Protraction at the scapulothoracic joint?
- Serratus anterior (w/origin fixed)
- Pectoralis minor
What muscles produce Retraction at the scapulothoracic joint?
- Middle trapezius
- Rhomboid major & minor
What muscles produce Upward Rotation at the scapulothoracic joint?
- Upper & lower trapezius (unilaterally)
- Serratus anterior (w/origin fixed)
What muscles produce Downward Rotation at the scapulothoracic joint?
- Rhomboid major & minor
- Levator scapula (unilaterally)
- Pectoralis minor
What is the scientific name for the shoulder joint?

Glenohumeral joint
List all the possible movements of the Glenohumeral joint.
- Flexion/Extension
- Abduction/Adduction
- Horizontal Abduction/Adduction
- Medial/Lateral Rotation
What muscles produce Flexion at the glenohumeral joint?
- Anterior deltoid
- Upper pectoralis major
- Biceps brachii
- Coracobrachialis
What muscles produce Extension at the glenohumeral joint?
- Posterior deltoid
- Latissimus dorsi
- Teres major
- Lower pectoralis major
- Long head triceps brachii
What muscles produce Abduction at the glenohumeral joint?
- Deltoid (all fibers)
- Supraspinatus
What muscles produce Adduction at the glenohumeral joint?
- Latissimus dorsi
- Teres major
- Infraspinatus
- Teres minor
- Pectoralis major (all fibers)
- Long head triceps brachii
- Coracobrachialis
What muscles produce Horizontal Abduction at the glenohumeral joint?

Posterior deltoid
What muscles produce Horizontal Adduction at the glenohumeral joint?
- Anterior deltoid
- Upper pectoralis major
What muscles produce Medial Rotation at the glenohumeral joint?
- Anterior deltoid
- Latissimus dorsi
- Teres major
- Subscapularis
- Pectoralis major (all fibers)
What muscles produce Lateral Rotation at the glenohumeral joint?
- Posterior deltoid
- Infraspinatus
- Teres minor

Author

Darkwater

363297

Card Set

Upper Extremity JM1

Description

Joint movements for the scapula and shoulder.

Updated

2023-10-29T15:33:55Z