Learning shoulder muscles doesn’t have to be overwhelming. With Anatomy Physiology Dingle flashcards, you can simplify complex muscle systems into bite-sized visual cards. In this guide, we’ll review key shoulder muscles using an easy flashcard-style format, perfect for students or anatomy nerds prepping for exams!
Deltoid Muscle Flashcard
Name: Deltoid
Function: Shoulder abduction, flexion, extension
Origin: Clavicle and scapula
Insertion: Humerus (deltoid tuberosity)
💡 Flashcard tip: Think “shoulder cap” – the deltoid forms the rounded contour of the shoulder.
Rotator Cuff Muscles Flashcard
Muscles: Supraspinatus, Infraspinatus, Teres Minor, Subscapularis (SITS)
Function: Stabilize the glenohumeral (shoulder) joint
🎓 Flashcard mnemonic: S.I.T.S. keeps your shoulder in place.
Trapezius Muscle Flashcard
Name: Trapezius
Function: Elevates, retracts, and rotates scapula
Fun fact: Works closely with levator scapulae and rhomboids to control shoulder blade movement.
Serratus Anterior Flashcard
Name: Serratus Anterior
Function: Protracts scapula, allows arm elevation
💡 Flashcard tip: Called the "boxer's muscle" – essential for punching!
Shoulder Muscle Flashcard Summary Table
| Muscle | Function | Flashcard Hint |
|---|---|---|
| Deltoid | Abducts shoulder | Shoulder cap |
| Supraspinatus | Starts arm abduction | First S in SITS |
| Infraspinatus | External rotation | Rotator cuff group |
| Teres Minor | Rotates and adducts | Small but mighty |
| Subscapularis | Internal rotation | Underside of scapula |
| Trapezius | Moves scapula in all directions | Upper back kite |
| Serratus Anterior | Scapular protraction | Boxer’s muscle |
