1. Shoulder & Upper Arm Injuries
Muscular
Anatomy

2. Shoulder & Upper Arm - Anatomy
Introduction
On a piece of paper, make a list of as many muscular structures of the shoulder & upper arm as you can
recall.
Get with a partner &
share what you have
on your lists.

3. Shoulder & Upper Arm - Anatomy
Objectives
Students will be able to:
Identify and label relevant muscles of the shoulder & upper arm
Recognize &
demonstrate anatomical
movements of the
shoulder

4. Shoulder & Upper Arm – Anatomy Terminology
Tendon
Connect muscle to bone
Range of Motion (ROM)
A measurable degree of anatomical movement at a particular joint

5. Shoulder & Upper Arm – Anatomy Muscular
Deltoid
Posterior
Origin
Scapular spine
Insertion
Deltoid tuberosity of humerus
Action
Extension, Horizontal abduction of the humerus

6. Shoulder & Upper Arm – Anatomy Muscular
Deltoid
Middle
Origin
Acromion process
Insertion
Deltoid tuberosity of humerus
Action
Abduction of the humerus to 90 degrees

7. Shoulder & Upper Arm – Anatomy Muscular
Deltoid
Anterior
Origin
Lateral clavicle
Insertion
Deltoid tuberosity of humerus
Action
Flexion, Horizontal adduction of the humerus

8. Shoulder & Upper Arm – Anatomy Muscular
Latissimus Dorsi
Origin
Spinous process T6-S5, iliac crest
Insertion
Medial humerus
Action
Extension, adduction of humerus

9. Shoulder & Upper Arm – Anatomy Muscular
Rotator Cuff
Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

10. Shoulder & Upper Arm – Anatomy Muscular
Supraspinatus
Origin
Supraspinous fossa of scapula
Insertion
Greater tubercle of humerus
Action
Abduction of the humerus
Stabilize head of humerus

11. Shoulder & Upper Arm – Anatomy Muscular
Infraspinatus
Origin
Infraspinous fossa of scapula
Insertion
Greater tubercle of humerus
Action
External rotation of the humerus
Stabilize head of humerus

12. Shoulder & Upper Arm – Anatomy Muscular
Teres Minor
Origin
Axillary border of scapula
Insertion
Greater tubercle of humerus
Action
External rotation of the humerus
Stabilize head of humerus

13. Shoulder & Upper Arm – Anatomy Muscular
Subscapularis
Origin
Subscapular fossa of scapula
Insertion
Lesser tubercle of humerus
Action
Internal rotation of the humerus
Stabilize head of humerus

14. Shoulder & Upper Arm – Anatomy Muscular
Pectoralis Major
Origin
Medial clavicle, sternum, costal cartilage (1-6)
Insertion
Lateral Humerus
Action
Flexion, adduction of humerus

15. Shoulder & Upper Arm – Anatomy Muscular
Pectoralis Minor
Origin
Anterior ribs 3-5
Insertion
Coracoid process
Action
Protraction of scapula

16. Shoulder & Upper Arm – Anatomy Muscular
Biceps Brachii
Origin
Short Head-coracoid process
Long Head-supraglenoid tubercle of scapula
Insertion
Radial tuberosity
Action
Shoulder Flexion
Elbow flexion

17. Shoulder & Upper Arm – Anatomy Muscular
Triceps Brachii
Origin
Long Head-infraglenoid tubercle of scapula
Lateral Head-posterior humerus
Medial Head- posterior humerus
Insertion
Olecranon process of ulna
Action
Shoulder Extension
Elbow extension

18. Shoulder & Upper Arm – Anatomy Muscles – Review – White Boards
Get white board & marker
Return to seat
View Review Power Point
Identify structure & write
answer on white board
Show answer when prompted

19. Shoulder & Upper Arm – Anatomy Muscles – Anatomical Movements
What causes muscles to move?
Muscle contraction

20. Shoulder & Upper Arm – Anatomy Muscles – Anatomical Movements
Name the anatomical movements of the shoulder?
Flexion
Extension
Abduction
Adduction
Internal Rotation
External Rotation
Circumduction

21. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Flexion
To bend, decrease the angle of a joint

22. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Extension
To straighten, increase the angle of a joint (restore to anatomical position)

23. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Abduction
Away from the mid-line

24. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Adduction
Toward the mid-line

25. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Internal Rotation
Movement around a central axis toward the median plane

26. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
External Rotation
Movement around a central axis away from the median plane

27. Shoulder & Upper Arm – Anatomy Muscles - Anatomical Movements
Circumduction
Movement in a circular pattern that outlines a cone

28. Shoulder & Upper Arm – Anatomy Muscles – Anatomical Movements
Get with a partner & take turns asking each other to demonstrate anatomical
movements of the
shoulder
Palpate the origin &
insertion of each muscle
to feel the muscle action

29. Shoulder & Upper Arm – Anatomy Muscles – Anatomical Movements
“Because I said so!”
Stand up
Establish some space around
you
Demonstrate the anatomical movement called out