1. Appendicular Skeleton
Chapter 6

2. Appendicular Skeleton Includes
Pectoral girdles (shoulders)
Upper limbs
Pelvic girdle (hip)
Lower Limbs

3. 1. Pectoral Girdle includes 4 bones (2 clavicle and 2 scapulae)
Slender
S-shaped
Very weak

4. Scapula (shoulder blades, resembles a triangle)
Acromion process-clavicle meets
Coracoid process-muscle
attaches
Glenoid cavity-humerus
inserts

5. 2. Upper Arm-4 (but hand has 3)
Humerus (see figure 6.19 pg. 140)
Proximal End
Head
Deltoid tuberosity-where deltoid
muscle attaches

6. Humerus contd. Distal End
capitulum-rounded knob that articulates with the head
Trochlea-spool-shaped that articulates with ulna
Coronoid fossa-when ulna is bent
Olecranon fossa-for ulna extended

9. Radius
Ulna-longer than radius
Hand--includes
Carpals (8)- Sally left the party to take Cathy home
1. scaphoid, 2. lunate, 3. triangular, 4. pisiform, 5. trapezium, trapezoid, 7. capitate, 8. hamate
Metacarpels (5)
Phalanges (3 each, except for thumb)

10. Hands have 28 bones (more than the feet)

11. Pelvic Girdle-attaches lower limbs to the axial skeleton
Consists of 2 hip bones or coxal bones
Joined by the Pubic Symphysis

12. Hip Bones *At age 23 they have all fused together *Acetabulum:
Socket for head of femur
Add the acetabulum to the picture

13. Lower Limbs (30 bones)
Femur, patella, tibia, fibula, 7 tarsals, 5 metatarsels, 14 phalanges
ACL holds the femur, patella and
tibia together
Femur: thigh, longest and
Heaviest
Patella: knee-cap
Tibia: shin-bone
Fibula: runs parallel to tibia