Noets[1] - zol328 notes TERMINOLOGY cellsbasic building blocks cells grouped into tissues tissues form organs organs work together as systems

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zol328 notes 3/3/10 TERMINOLOGY cells—basic building blocks cells grouped into tissues tissues form organs organs work together as systems classically, only 4 tissue types: 1. epithelial arises from ectoderm -eg epidermis arises from endoderm -eg epithelial layer of sotmach or intestine 2. connective tissue cells surrounded by matrix (mixture of nonliving material, often produced by the cells) -eg bone, cartilage, blood 3. muscle 4. nervous tissue mesenchyme cells: wandering cells —can be from any embryonic layer, NOT the same as mesodermal cells —eg neural crest cells INTEGUMENT roles boundary from environment protection: dermal armor, scales, glands (mucus, toxin, scent), claws, horns, teeth sensory—nerve endings, hairs (vibrissae) gas exchange—respiration (salamanders) waste removal—nitrogenous wastes, salts (sweat) thermoregulation—feathers, hair, capillaries, pigments, sweat nourishment—mammary glands locomotion—adhesive pads, claws, scutes, feathers protection from microorganisms
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This note was uploaded on 03/27/2010 for the course ZOL 328 taught by Professor Hill during the Spring '08 term at Michigan State University.

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Noets[1] - zol328 notes TERMINOLOGY cellsbasic building blocks cells grouped into tissues tissues form organs organs work together as systems

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