Question

What is types of tissue???

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Answer 1

There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).

Answer 2

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Epithelial Tissue

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

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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)

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Muscle Tissue

Features - elastic, extensible, contractile

Types - skeletal, cardiac (gap junctions, intercalated discs), smooth, striated, nonstriated

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Nervous Tissue

Neurons - soma, dendrites, axons, ganglia (PNS), nuclei (CNS)

Glia - astrocytes, oligodendrocytes, Schwann cells, microglia - blood-brain barrier

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