Appendicular Skeleton

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Appendicular Skeleton
Upper Appendicular Skeleton Bone Lower Appendicular Skeleton Bone Similarities Differences
Clavicle Ischium/Pubis
Scapula Ilium
Humerus Femur
Radius Tibia
Ulna Fibula
Carpals Tarsals
Metacarpals Metatarsals
Phalanges Phalanges
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Pectoral Girdle

• Clavicle collarbone
• Anterior attachment (?)
• Posterior attachment (?)
• Scapula shoulder blades
• Posterior attachment (?)
• Spine divides posterior surface into 2 sections
• Coracoid process (Corac ?) curves to
  clavicle
• Acromion process forms tip of shoulder
• Glenoid cavity (or fossa) depression that
  articulates with head of humerus

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Upper Limb

• Humerus
• Radius
• Ulna
• Carpals
• Metacarpals
• Phalanges

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Humerus

• Head fits into glenoid cavity of scapula
• Greater tubercle lateral process
• Lesser tubercle more anterior process
• Intertubercular groove narrow furrow between
  tubercles
• Deltoid tuberosity v-shaped, rough area where
  _________ muscles attach to humerus
• Olecranon fossa posterior depression that
  receives an ulnar process when elbow is
  straightened
• Coronoid fossa anterior depression that
  receives a radial process when elbow is bent

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Radius

• Shorter bone of lower arm
• Located on thumb side of arm
• Disc-like head articulates with humeru and with
  radial notch of the ulna (so your arm can rotate)
• Radial tuberosity, a process below the head,
  provides attachment for biceps
• Styloid process at distal end attachment for
  wrist ligaments

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Ulna

• Longer than radius
• Overlaps distal end of humerus posteriorly
• Proximal end has a wrenchlike opening called the
  trochlear notch (articulates w/humerus)
• Oleacronon process top process
• Coronoid process bottom process
• Radial notch just below trochlear notch
• Head at distal end articulates with ulnar
  notch of radius
• Styloid process attachment for wrist ligaments

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Label Diagrams