AP 1 Ch 5 review

  1. Extracellular Matrix
    • Complex nonliving material between cells and tissue
    • Components: water, proteins (structural, glycoproteins)
    • Prteoglycans (mostly carbohydrates attached to protein backbone, give ECM thickness & shock absorption)
    • Funtions: binds tissue together, Allow communication among ECM and various cells through connection via integrins in plasma membrane.
  2. Epithelial Tissue
    • Membranous (covering), Glanular (secretory units of endocrine & exocrine glands)
    • Functions: protection, sensory funtions, secretion, absorbtion, excretion
    • avascular
    • close proximity with many desmosomes & tight juntions
    • capable of reproduction
  3. Classification of membranous epithelial tissue
    • Based on cell shape: Squamous, Cuboidal, Columnar, Psudostratified columnar
    • Based on layers of cells:
    • -simple squamous- one cell layer of flat cells, permeable to many substances (lines blood vessels & pleura)
    • - simple cuboidal- one cell layer of cuboidal-shaped cells, found in many glands & ducts
    • - simple columnar- single layer of tall, column-shaped cells, cells often modified for certain functions such as goblet cells, cilia, microvilli;
Card Set
AP 1 Ch 5 review
Ch 5 tissue