📖 Static demo — read-only snapshot

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Lower Trapezius

Lower fibers of the trapezius. Depresses and upwardly rotates the scapula. Critical for overhead shoulder mechanics.

Draft95%

Anatomy

Origin: Spinous processes T4-T12
Insertion: Deltoid tubercle (medial spine of scapula)
Action: Scapular depression, upward rotation, retraction
Innervation: Spinal accessory nerve (CN XI), with proprioceptive and motor contributions from C3-C4
Blood Supply: Dorsal scapular artery, transverse cervical artery

Movements (5)

Movement	Joint	Role	Notes
Scapular Upward Rotation	Scapulothoracic Articulation	Primary	Pulls root of spine inferiorly
Scapular Depression	Scapulothoracic Articulation	Primary	—
Scapular Retraction	Scapulothoracic Articulation	Secondary	—
Shoulder Flexion	Glenohumeral Joint	Synergist	Scapular upward rotation
Shoulder Abduction	Glenohumeral Joint	Synergist	Scapular upward rotation

Exercises (42)

Exercise	Role
Upward Rotation Shrug (30° Abduction)	Primary
Wall Angel	Primary
Push-Up Plus	Primary
Scapular Stability Exercises (Rows / Scapular Retraction)	Primary
Scapular Elevation and Depression (Shrugs / Reverse Shrugs)	Primary
Prone Y-T-W Raise	Primary
Prone T with External Rotation	Primary
Wall Slide	Primary
Scaption with External Rotation	Primary
Prone Horizontal Abduction with External Rotation (Prone Y/T)	Primary
Prone Y-Raise	Primary
Low Row (Band/Cable)	Primary
Inverted Row	Primary
Downward Dog (Adho Mukha Svanasana)	Secondary
Schroth-Based Three-Dimensional Exercises	Secondary
Side-Lying External Rotation	Secondary
Barbell Row	Secondary
Lat Pulldown	Secondary
Pull-Up	Secondary
Face Pull	Secondary
Superman	Secondary
Cobra Pose	Secondary
Doorway Isometric Row	Secondary
Towel Row	Secondary
Band Pull-Apart	Secondary
Scapular Clock (Wall-Supported)	Secondary
Hanging Leg Raise	Stabilizer
Scapular Downward Rotation Control (Arm Lowering)	Stabilizer
Chair Triceps Dip	Stabilizer
Dip	Stabilizer
Water Bottle Lateral Raise	Stabilizer
World's Greatest Stretch	Stabilizer
Bird Dog to Elbow-Knee	Stabilizer
Triceps Pushdown	Stabilizer
Seated Cable Row	Synergist
Bear Crawl	Synergist
Bent-Over Row	Synergist
Jumping Jack	Synergist
Chin-Up	Synergist
Dumbbell Shoulder Press	Synergist
Lateral Raise	Synergist
Towel Scapular Retraction	Synergist

Sources

Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Lower Trapezius — origin, insertion, action, innervation
Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Lower Trapezius