appendicular skeleton

Appendicular Skeleton Ch. 8

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Appendicular Skeleton. Ch. 8. Consists of:. Shoulder (pectoral) Girdle Upper extremities Pelvic Girdle Lower extremities. Shoulder Girdle. Sternum + clavicle = sternoclavicular joint Clavicle + scapula = acromioclavicular joint Scapula held in place by muscle only - PowerPoint PPT Presentation


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Appendicular Skeleton

Ch. 8

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Consists of:

• Shoulder (pectoral) Girdle• Upper extremities• Pelvic Girdle• Lower extremities

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Shoulder Girdle• Sternum + clavicle = sternoclavicular joint• Clavicle + scapula = acromioclavicular joint• Scapula held in place by muscle only• Upper limb attached to girdle at shoulder

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Shoulder Girdle - Clavicle

• S-shaped bone

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Shoulder Girdle – posterior scapula

• Acromion process

• Glenoid cavity

• Spine• Coracoid


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Shoulder Girdle – anterior scapula

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Upper Extremities

• 30 bones each• Humerus, radius, ulna• Carpal bones in wrist• Metacarpals in palm• Phalanges in fingers

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• Head• Greater tubercle• Lesser tubercle• Deltoid tuberosity• Lateral epicondyle• Medial epicondyle• Capitulum• Trochlea

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Radius and Ulna

• Radius– Head– Styloid process – Radial tuberosity

• Ulna– Styloid process

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Wrist and Hand

• Carpals• Metacarpals• phalanges

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Metacarpals and Phalanges

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Pelvic Girdle

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Pelvic Girdle

• Ilicac crest• Anterior/superior

iliac spine• Acetabulum• Spine of ischium• Obturator formaen• Pubic symphysis

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Tortora & Grabowski 9/e 2000 JWS 8-15

Female and Male Skeletons• Male skeleton– larger and heavier– larger articular

surfaces– larger muscle

attachments• Female pelvis– wider & shallower– larger pelvic inlet &

outlet– more space in true

pelvis– pubic arch >90 degrees

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Lower Extremities

• 30 bones each• Femur• Patella• Tibia• Fibula• Tarsals• Metatarsals• phalanges

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Femur and Patella

• Head• Greater

trochanter• Lesser

trochanter• Lateral

epicondyle• Medial


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Tibia and Fibula

• Tibia– Medial and larger– Tibial tuberosity– Lateral condyle– Medial condyle– Medial malleolus

• Fibula– Lateral and smaller– Head– Lateral mealleolus

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Tarsals – Metatarsals - Phalanges

• Calcaneus• Talus• Cuboid• Navicular• Cuneiforms