unit 6 –appendicular skeletal anatomystagganatomy.weebly.com › uploads › 3 › 8 › 5 › 1...
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Unit 6 –Appendicular Skeletal Anatomy
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Bone Facts of the Human Body
• The fetal human body has 300 bones
• The adult human body has 206 bones• About half of these bones are in your hands and feet
• Humans & Giraffes have the same number of neck bones
• Longest bone in the body = Femur
• Smallest bone in the body = Inner Ear Bones (Hammer, Anvil, Stirrup)
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Appendicular Skeleton
• 126 out of 206 bones in the appendicular skeleton
• Contains• Limbs (Appendages)
• Pectoral (Shoulder) Girdle
• Pelvic (Pelvis) Girdle
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The Pectoral (Shoulder) Girdle
• Composed of 2 bones:• Clavicle – collarbone
• Saapula – shoulder blade
• These bones allow the upper limb to have exceptionally free movement
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Bones of the Pectoral (Shoulder) Girdle
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Bones of the Pectoral (Shoulder) Girdle
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Bones of the Upper Limbs
• The arm is formed by a single bone• Humerus
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Bones of the Upper Limbs
• The forearm has 2 bones• Ulna (inner bone in anatomical position)
• Radius (outer bone in anatomical position)
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Bones of the Upper Limbs
• The Hand• Carpals = wrist
• Metacarpals = palm
• Phalanges = fingers
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Bones of the Pelvic Girdle
• Hip bones• Composed of 3 pair of fused bones
• Ilium
• Ischium
• Pubic bone
• Total weight of the upper body rests on the pelvis
• Protects several organs• Reproductive organs
• Urinary bladder
• Part of the large intestine
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The Pelvis
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The Pelvis
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Gender Differences in the Pelvis
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Bones of the Lower Limbs
• The thigh has 1 bone• Femur = thigh bone
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Bones of the Lower Limbs
• The leg has 2 bones• Tibia (outer bone in anatomical position)
• Fibula (inner bone in anatomical position)
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Bones of the Lower Limbs
• The Foot• Tarsus = ankle
• Metatarsals = sole
• Phalanges = toes
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Arches of the Foot
• Bones of the foot are arranged to form 3 strong arches• 2 longitudinal
• 1 transverse