BSC 469 Study Guide - Midterm Guide: Tight Junction, Brown Adipose Tissue, White Adipose Tissue
28 Sep 2017
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Binds with extracellular fibers, intracellular membranous components, cytoplasmic fibers: basic- dyes nucleic acids deep blue or purple. Binds with amino acids of dna, ribosomes, extracellular matrix: nerve axons use silver salts. Epidermis of skin: non-keratinized- nucleus in top cells. Secretions empty into tissue space, then enter bloodstream: classification of exocrine glands, mode of excretion, ducts, secretory units, mode of excretion of exocrine glands, merocrine, secretions pass from cells by exocytosis. No damage to plasma membrane or loss of cytoplasm: salivary, sweat glands, holocrine, cells becomes enlarged with lipids, then rupture. Primary ossification enlarges: osteoclasts break down spongy bone xi. Responsible for formation and growth of new bone: osteocytes- mature bone cells imprisoned in lacunae of bone matrix. Transfer of nutrients: osteoclasts- giant multinucleated cells scattered along external and internal bone surface where resorption and remodeling of bone occur. Nestled in shallow depression on bone surface called howship"s.
