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Date: _______________________ Tissues Bio 12 Ch. 11 Tissues Tissues are groups of similar cells that perform a common function. There are four categories of tissues in the body. Read Ch. 11 in your textbook. 1) Epithelial tissue 2) Connective tissue 2) Muscle tissue 3) Nervous tissue Create a table using these categories to help organize your material. Construct the table on a large blank sheet of paper provided by your teacher. (17 x 22) Tissue Epithelial Tissue Functions, jobs Classifications (types) Drawings Features - high cellularity, special sensory receptors, forms a barrier, avascular, innervated Surfaces - basal (hemidesmosomes, basement membrane), apical (lumen, microvilli, cilia, stereocilia), lateral (adhering junctions, tight junctions, desmosomes, gap junctions) Types - squamous, cuboidal, columnar, simple, stratified, pseudostratified, specialized Connective Tissue Structure - cells (structural, immunological, defense, energy reservoirs), extracellular matrix (ground substance, protein fibers) Types of fibers - collagen, reticular, elastic Classification - proper (dense, loose), embryonic (mesenchyme, mucous), specialized (cartilage, adipose, bone, blood) Date: _______________________ Muscle Tissue Tissues Bio 12 Features - elastic, extensible, contractile Types - skeletal, cardiac (gap junctions, intercalated discs), smooth, striated, nonstriated Nervous Tissue Neurons - soma, dendrites, axons, ganglia (PNS), nuclei (CNS) Glia - astrocytes, oligodendrocytes, Schwann cells, microglia - blood-brain barrier