Histology_Exam2.docx - Histology Tissues group of cells of the same embryological origin that produce a specific function o Types 1 Epithelial 2

Histology_Exam2.docx - Histology Tissues group of cells of...

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Histology Tissues: group of cells of the same embryological origin that produce a specific function o Types: 1. Epithelial 2. Connective 3. Nervous 4. Muscle Epitheial: o 2 major groups 1. Covering: found in external surfaces, body cavities, hollow tubes Classifying Covering Epithelial: 1. Cell layers Simple: 1 layer Stratified: 2+ layers 2. Cell shape Squamous: flat Cuboidal: cube Columnar: rectangular 2. Glandular: found in the lining on glands Types of Glands: 1. Exocrine: have ducts 2. Endocrine: no ducts/ secrete chemicals into blood Classifying Glands: 1. Anatomical Unicellular: 1 cell Multicellular: 2+ cells 2. Functional: Holocrine: secretes oils/ entire gland disintegrates Merocrine: secretes chemicals through exocytosis/ does not disintegrate Apocrine: secretes chemicals/ only the top of the gland disintegrates Connective o Functions: protects organs/ binds organs together o Components: 1. Protein Fibers: Collagen: though/ not elastic
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  • Spring '14
  • MarkS.Kosco

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