Muscle Test #3

Front

What is the insertion of the Quadratus Lumborum (QL)?

Back

Transverse processes L1-L4

Front

What is the major action of the psoas major muscle?

Back

Hip flexion

Front

Which muscle originates on C1-C4 transverse processes and elevates the scapula?

Back

Levator Scapula

Front

What is the origin and action of the Rhomboids muscle?

Back

Originates on C7-T5 spinous processes, retracts and downwardly rotates the scapula.

Front

What muscle originates on the subscapular fossa and medially rotates the shoulder?

Back

Subscapularis

Front

What is the function of the Upper Trapezius muscle?

Back

Elevates the scapula and assists in upward rotation.

Front

Where does the Latissimus Dorsi muscle insert?

Back

Intertubercular groove of the humerus.

Front

What is the primary action of the Teres Major muscle?

Back

Medially rotates and adducts the shoulder.

Front

What is the origin of the Supraspinatus muscle?

Back

Supraspinous fossa of the scapula.

Front

What is the role of the Middle Trapezius muscle?

Back

Retracts the scapula.