The Appendicular Skeleton

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The Appendicular Skeleton

• Primary function-Movement
• Bones form pectoral Pelvic Girdles
• Bones of Upper limb
• Bones of Lower Limb

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Pectoral GirdleClavicle Scapula
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Clavicle

• The clavicle forms the anterior portion of the
  shoulder girdle.
• It is s-shaped collar bone, and placed nearly
  horizontally at the upper and anterior part of
  the thorax, immediately above the first rib.
• It articulates medially with the manubrium
  sterni, and laterally with the acromion of the
  scapula.  
• It presents a double curvature, the convexity
  being directed forward at the sternal end, and
  the concavity at the scapular end. Its lateral
  third is flattened from above downward, while its
  medial two-thirds is rounded.
• One of the most frequently broken bone.

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Scapula

• The scapula, or shoulder blade, is the bone that
  connects the humerus (arm bone) with the
  clavicle.
• It has two surfaces, three borders, and three
  angles.
• Processes spine, acromion coracoid

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Scapula
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Humerus articulates with the scapula (glenoid
cavity) and distally with the radius and
ulna also known as the funny bone
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Radius Ulna
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Carpal, Metacarpals Phalanges
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Proximal Row Distal Row
Stop Letting Those People - Touch The Cadavers
Hand
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Hip Bone
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Pelvic Girdle

• The Pelvic Girdle is composed to two hip bones.
• The hip bones united anteriorly at a joint
  called- pubic symphysis.
• They unite posteriorly with the sacrum at the
  sacroiliac joint
• Each hip bone consists of three separate parts
  the ilium, ischium pubis.

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False True Pelvis
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Comparison of Girdles

• The pelvic girdle articulate directly with the
  vertebral column but pectoral girdle does not.
• pectoral girdle offers more mobility than
  strength
• Pelvic girdle offers more strength than mobility

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Arches of the Foot

• The bones of the foot are arranged in
• two arches formed by the tarsal and metatarsal
  bones, and strengthened by the ligaments and
  tendons of the foot.
• The arches are categorized as
• transverse arch of the foot
• longitudinal arch of the foot

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Arches of the Foot