PPT-Glandular Specialized Epithelium

Glandular Specialized Epithelium Specialized Epithelial Tissue are a class of epithelial tissues that have very specific and specialized functions and structures This tissue is composed of cuboidal columnar ciliated columnar epithelial cells. Kinocilia. . Simple Columnar Epithelium with . Kinocilia. . (higher magnification). Pseudostratified. Columnar Epithelium with . Stereocilia. . Study of cells, tissues and organs as seen with the help of microscope. Study . Histology. Often called . Microscopic Anatomy. Greek word – . . Histos. = tissue. . Logia. =science/study. Cells work together in functionally related groups called tissues. Functions of the alimentary mucosa:. 1. . Barrier function: . The mucosa serves as a barrier to the entry of noxious substances, antigens, and pathogenic organisms.. 2. . . Immunologic function. : . Lymphatic tissue in the mucosa serves as a first line of defense of the body by the immune system.. Tongue. Esophagus – Stratified Squamous Epithelium. Stomach – Simple Columnar Epithelium. Small . Intestine – Simple Columnar. Colon – Simple Columnar. Liver – Glandular Epithelium. Pancreas – Glandular Epithelium. Made of cells that secrete substances into ducts or body fluids. Almost always columnar and cuboidal epithelia. Exocrine vs Endocrine. Exocrine Glands: secrete their products into ducts that open onto surfaces (ex: skin, lining of digestive tract). Glandular Abnormalities Pap test = Atypical Glandular Cells (AGC) Specify: endocervical, endometrial, NOSAGC, favor neoplasiaEndocervicaladenocarcinoma insitu (AIS)* Incidence is 0.3% (135,000 cases/y Keratoconus. : . Increasing . Patient Comfort Without Sacrificing Efficacy. World . cornea congress vii. San Diego 2015. Authors/Disclosure. Michael P Ehrenhaus, MD. New York Cornea Consultants. MD Ojos. . Glandular . epithelium . Prepared by: Reem Aldossari. a gland may consist of . one cell or a group of cells. highly specialized to secrete substances into ducts, onto surfaces, or into the blood.. Membrane epithelium becomes glandular epithelium when it . invaginates. / involutes into . the . tissue layer / layers below, forming a . gland. There are . two main types of gland. . They are . exocrine and endocrine. Lab 2. ZOO 103. Structure . They are c. losely packed cells.. . Specialized. to cover external surfaces. . or line internal cavities.. Epithelial cells are packed tightly . together, with almost . VIBS 289 lab. . . Larry Johnson Texas A&M University. Epithelium - function. Epithelium. forms the . outer protective surface . of the body and . all the glands. The epithelium of ventral side of tongue is made up of stratified squamous epithelium which is keratinized in all species. The dorsal surface of the tongue consist of papillae which are grouped under gustatory and . Advanced electron microscopy reveals enormous variation in shape, density, and dimensions of . trichomes. in . Solanaceae. Background: Trichomes. Glandular. Non-glandular. Image credits: Sakshi Watts. Laminae. . epithelialis. is lined with simple columnar epithelium. The surface epithelium consist of gastric pits which later on differentiates into gastric glands. The gastric pits are dipper in pyloric region than in cardiac and .