Appendicular Skeleton
Ch. 8
Consists of:
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Shoulder (pectoral) Girdle
Upper extremities
Pelvic Girdle
Lower extremities
Shoulder (pectoral) girdle
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Sternum + clavicle = sternoclavicular joint
Clavicle + scapula = acromioclavicular joint
Scapula held in place by muscles only
Upper limb attached to girdle at shoulder
• Clavicle – s-shaped bone
– Attaches sternum to shoulder (bridge between the
2 joints)
Shoulder Girdle – posterior scapula
• Acromion
process
• Glenoid
cavity
• Spine
• Coracoid
process
Shoulder Girdle – anterior scapula
Upper Extremities
• 30 bones each
• Consists of:
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Humerus
Radius
Ulna
Carpal bones in wrist
Metacarpals in hand
• 1-5 starts with thumb
– Phalanges in fingers
• 1-5 starts with thumb
Humerus
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Head
Greater tubercle
Lesser tubercle
Deltoid tuberosity
Lateral epicondyle
Medial epicondyle
Capitulum
Trochlea
Radius and Ulna
• Radius
– Head
– Styloid process
– Radial tuberosity
• Ulna
– Styloid process
Wrist and Hand
• Carpals
• Metacarpals
• phalanges
Carpals
Metacarpals and Phalanges
Pelvic Girdle
• Made of 2 bones
• Join with the lower
extremities
• Differences between
male and female pelvis
– Male
• Larger and heavier
• Larger muscle attachments
– Female
• Larger pelvic spaces
• Pubic arch greater than 90
degrees
Lower Extremities
• 30 bones each
• Consists of:
– Femur
– Patella
– Fibula
• Lateral and smaller
– Tibia
• Bigger and medial
– Tarsals in ankle
– Metatarsals in foot (1-5)
– Phalanges in toes (1-5)
Femur and Patella
• Head
• Greater
trochanter
• Lesser
trochanter
• Lateral
epicondyle
• Medial
epicondyle
Tibia and Fibula
• Tibia
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Medial and larger
Tibial tuberosity
Lateral condyle
Medial condyle
Medial malleolus
• Fibula
– Lateral and smaller
– Head
– Lateral mealleolus
Tarsals – Metatarsals - Phalanges
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Calcaneus
Talus
Cuboid
Navicular
Cuneiforms