enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Aerenchyma - Wikipedia

    en.wikipedia.org/wiki/Aerenchyma

    Aerenchyma in stem cross section of a typical wetland plant. Aerenchyma or aeriferous parenchyma [1] or lacunae, is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. [2]

  3. Simple columnar epithelium - Wikipedia

    en.wikipedia.org/wiki/Simple_columnar_epithelium

    The ciliated part of the simple columnar epithelium has tiny hairs which help move mucus and other substances up the respiratory tract. The shape of the simple columnar epithelium cells are tall and narrow giving a column like appearance. the apical surfaces of the tissue face the lumen of organs while the basal side faces the basement membrane ...

  4. Table of epithelia of human organs - Wikipedia

    en.wikipedia.org/wiki/Table_of_epithelia_of...

    Simple columnar, non-ciliated - digestive: anus: Stratified squamous, non-keratinized superior to Hilton's white line Stratified squamous, keratinized inferior to Hilton's white line - digestive: gallbladder: Simple columnar, non-ciliated - endocrine: thyroid follicles: Simple cuboidal - nervous: ependyma: Simple cuboidal - lymphatic: lymph ...

  5. List of human cell types derived from the germ layers

    en.wikipedia.org/wiki/List_of_human_cell_types...

    Mesoderm embryonic tissues (paraxial mesoderm, intermediate mesoderm, lateral plate mesoderm and notochord). Also showing the neural tube and the yolk sac . Paraxial mesoderm

  6. Epithelium - Wikipedia

    en.wikipedia.org/wiki/Epithelium

    Glandular tissue is the type of epithelium that forms the glands from the infolding of epithelium and subsequent growth in the underlying connective tissue. They may be specialized columnar or cuboidal tissues consisting of goblet cells, which secrete mucus. There are two major classifications of glands: endocrine glands and exocrine glands:

  7. Stratified squamous epithelium - Wikipedia

    en.wikipedia.org/wiki/Stratified_squamous_epithelium

    In the deeper layers, the cells may be columnar or cuboidal. [1] There are no intercellular spaces. This type of epithelium is well suited to areas in the body subject to constant abrasion, as the thickest layers can be sequentially sloughed off and replaced before the basement membrane is exposed.

  8. Simple cuboidal epithelium - Wikipedia

    en.wikipedia.org/wiki/Simple_cuboidal_epithelium

    Simple cuboidal epithelium is a type of epithelium that consists of a single layer of cuboidal (cube-like) cells which have large, spherical and central nuclei. Simple cuboidal epithelium is found on the surface of ovaries , the lining of nephrons , the walls of the renal tubules , parts of the eye and thyroid , and in salivary glands .

  9. Tissue (biology) - Wikipedia

    en.wikipedia.org/wiki/Tissue_(biology)

    In plant anatomy, tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Epidermis – Cells forming the outer surface of the leaves and of the young plant body. Vascular tissue – The primary components of vascular tissue are the xylem and phloem. These transport fluids and ...