Kinesiology 2222A/B Lecture 2: Lecture 2 -- 2222A

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Bone tissue -- learning objectives: explain the principle functions of the skeletal system, discuss the different types of bones based on their classification system (tissue type vs. Morphology: compare and contras cortical bone to spongy bone, describe the anatomy of a typical long bone, describe the cells of bone, describe structural of the skeletal system (axial vs. appendicular, discuss skeletal terminology using appropriate examples. Types of bone: two classifications, type of bony tissue, cortical (compact, spongy (trabecular) Cortical (compact) bone: makes up the surface of bones, composed of osteons, concentric lamellae around a haversian canal (lamellae create a canal in which a blood vessel travels through -- osteon, osteons are aligned in parallel for strength. Spongy bone: makes up the interior of bones, does not contain osteons -- lightens bones. Lamellae arranged in irregular patter of columns (trabeculae) Putting it together: articular cartilage (blue, on outside of cortical (compact) bone. It allows for smooth movement in a joint.

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