1. Skeletal System: Shoulders and Arms
Learning Target #7

2. Shoulder Girdle Composed of:
Clavicle (2): articulates with the sternum and scapula
Also called the “collar bone”
Scapula (2): articulates with clavicle and the humerus
Also called the “shoulder blades”
Clavicle
Scapula

3. Associated Structures of the Scapula
Acromion process: articulates with the clavicle
Coracoid process: site of attachment at the top of the shoulder for muscles of the arm
Glenoid cavity: socket that receives the head of the humerus
Spine of the scapula: site of attachment for muscles of the arm and back

4. Associated Structures of the Scapula
Coracoid process
Acromion process
Spine
Glenoid cavity

5. Upper Appendages
Humerus (2): upper arm bone, articulates with the scapula, radius, and ulna
Radius (2): lower arm bone, articulates with the humerus, ulna, and carpals
Thumb side of the forearm
Ulna (2): lower arm bone, articulates with the humerus, radius, and carpals
Little finger side of the forearm

6. Upper Appendages
Radius
Humerus
Ulna

7. Associated Structures
Humerus:
Head of the humerus  articulates with the glenoid cavity of the scapula
Deltoid tuberosity  location of attachment for the deltoid muscle

8. Associated Structures
Radius:
Head of the radius  articulates with the humerus
Radial tuberosity  location of attachment for the biceps muscle
Styloid process  articulates with the carpals to form the wrist
Ulna:
Olecranon process  articulate with the humerus, forms the elbow joint
Coronoid process  grips the humerus from the inside of the arm

9. Associated Structures
Olecranon process
Head of the radius
Head of the humerus
Radial tuberosity
Coronoid process
Deltoid tuberosity
Styloid process

10. Upper Extremities Carpals: wrist, 8 bones per hand
Metacarpals: palm, 5 bones per hand, heads of these are the knuckles
Phalanges: fingers, 14 bones per hand

11. Upper Extremities
Distal
Phalanges
Middle
Proximal
Metacarpals
Carpals