 The Skeletal System. Parts of the skeletal system  Bones...

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Transcript of  The Skeletal System. Parts of the skeletal system  Bones...

The Skeletal System

The Skeletal System

Parts of the skeletal system

Bones (skeleton)JointsCartilagesLigaments

Two subdivisions of the skeleton

Axial skeletonAppendicular skeleton

Adult skeleton approximately 206 bones

Axial: 80 bones

Appendicular: 126 bonesFunctions of bonesTwo basic types of bone tissueCompact boneHomogeneous

Spongy boneMany open spaces

Classification of Bones based on Shape

Classification of Bones based on Shape

Classification of Bones based on Shape

Classification of Bones based on Shape

Anatomy of a Long BoneEpiphysis

Ends of the boneComposed mostly of spongy bone

Anatomy of a Long Bone

Anatomy of a Long BoneEpiphysis

Ends of the boneComposed mostly of spongy bone

Anatomy of a Long BonePeriosteumOutside covering of the diaphysisFibrous connective tissue membraneSharpeys fibersSecure periosteum to underlying boneArteriesSupply bone cells with nutrientAnatomy of a Long Bone