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28skeleton - Lecture 28 Bones and Cartilage Chapter 11...

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Lecture 28: Bones and Cartilage Chapter 11: Skeletal System
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The Big Picture What are the parts of the skeletal system ? Anatomy of Bones and Cartilage Growth and Development
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The Skeletal System Our skeleton performs a number of functions
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Support Our skeleton provides structure and support to our body and its parts when we stand or sit
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Protection Our skeleton protects our soft inner organs (heart, lungs, etc) from being damaged
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Blood Production Our skeleton plays a role in producing all of the different types of cells found in our blood
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Mineral/Fat Storage Our skeleton uses the inorganic matrix to store minerals (like calcium) and one type of marrow to store fat
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Movement Our skeleton coordinates with our muscular system and produces movement at joints
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Skeletal Parts Our skeleton is composed of three parts: Bones Cartilage Ligaments
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Long Bones Long bones are composed of the diaphysis , capped by two epiphyses Diaphysis: long main shaft of bone Epiphysis: expanded region at ends of bone
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Inside the Diaphysis Medullary cavity Walls are compact bone Filled with yellow bone marrow Stores fat for the bone cells to use
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Mostly spongy bone
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28skeleton - Lecture 28 Bones and Cartilage Chapter 11...

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