Ch 40 - animal form and function (3 slides per page)

Specialization pseudostratified 27 simple columnar

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Unformatted text preview: ated pseudostratified epithelia 3. Specialization pseudostratified 27 simple columnar Connective Tissue 28 6 types of connective tissues Sparse populations of cells scattered throughout an extracellular matrix Function • Holds tissues and organs together and in place General Morphology: • Abundant Extracellular Matrix (ECM) • 2 main components that differ in type and proportion in different connective tissues: A. ground substance (GS) - can be 1) liquid; 2) gelatinous: or 3) solid B. fibers (not in blood) • 3 types 1. Collagenous: strength & flexibility 2. Reticular: join to other tissues 3. Elastic: resume normal shape spontaneously • ECM: Very little ground substance • ECM: Liquid or gelatenous GS • Fibers: Mainly dense collagen fibers • Fibers: Loose weave of all 3 types • In tendons (muscle to bone) • Holds skin & most organs in place and ligaments (bone to bone) • Mainly large storage cells • Very little ECM w/ collagen that binds cells together & in place • Cushions, insulates and stores fuel • Few & loosely associated cells located within the ECM (vs. epithelial or muscle w/ tightly associated cells) • Most cells produce ECM (Fibroblasts, chondrocytes, osteoblasts) • Other cells (Macrophages) engulf foreign particles • Tissue specific cells: osteoclasts, adipocytes, blood cells,etc. • ECM: Abundant and solid • ECM: Abundant and rubbery • Fibers: Mainly collagen • Fibers: mainly collagen • Fibers/ECM secreted by cells (chondrocytes) • Fibers/ECM secreted by cells (os...
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This note was uploaded on 02/12/2014 for the course BIOLOGY 2011 taught by Professor Woo during the Fall '10 term at University of Central Florida.

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