Digital Signal Information

  • Home
  • Download
  • Poker
Home » Health » Stratified Epithelia

Friday, February 15, 2013

Stratified Epithelia

Stratified Epithelia
Stratified squamous epithelium
Stratified squamous epithelia vary in thickness depending on the number of cell layers present. The deepest cells, which are in contact with the basement membrane, are cuboidal or columnar in shape. This layer is usually named the basal cell layer, and the cells are called basal cells. Basal cells are mitotically active and replace the cells of the epithelium which are lost by "wear and tear". The basal cell layer is followed by layers of cells with polyhedral outlines. Close to the surface of the epithelium, cells become more flattened. At the surface of the epithelium, cells appear like flat scales - similar to the epithelial cells of simple squamous epithelia.
Remember that it is the shape of the cell which form the surface of the epithelium which gives the name to the epithelium.
Stratified cuboidal and columnar epithelia
are not common. A two-layered cuboidal epithelium is, for example, seen in the ducts of the sweat glands. Stratified columnar epithelia are found in the excretory ducts of the mammary gland and the main excretory duct of the large salivary glands.

Suitable Slides
stratified squamous epithelium: sections of the oesophagus, tongue or vagina - H&E, van Gieson, trichrome.
stratified cuboidal epithelium: skin (excretory ducts of sweat glands) - H&E
stratified columnar epithelium: sections of the parotid gland or mammary gland - H&E
thumbnail Title: Stratified Epithelia
by:om at 2013-02-15T02:43:00+07:00
Rating: 4.8 of 5 Reviews
Stratified Epithelia
f
Share
t
Tweet
g+
Share
?
om
2:43 AM

Belum ada komentar untuk "Stratified Epithelia"

Post a Comment

Newer Post Older Post Home
Subscribe to: Post Comments (Atom)
Find Us :

Popular Posts

  • The tonsils are
    Tonsils The tonsils are accumulations of lymphoid tissue surrounding the openings of the digestive and respiratory tracts . The tonsils ...
  • Central Nervous System (CNS)
    NERVOUS TISSUE The nervous system consists of all nervous tissue in the body. It is divided anatomically into the central nervous system ...
  • FAQ - Asiapoker77 Bonus Jackpot Plus Tiap Bulan
    FAQ - Asiapoker77 Bonus Jackpot Plus Tiap Bulan - Tanya Jawab Kontes  Bolehkan jika yang didaftarkan adalah blog utamanya saja (bukan ...
  • Degeneration and Regeneration of Cartilage
    Degeneration and Regeneration of Cartilage Due to the fairly poor access of nutrients to the chondrocytes they may atrophy in deep parts...
  • Gut-Associated Lymphoid Tissue - GALT
    Gut-Associated Lymphoid Tissue - GALT Small accumulations of lymphocytes or solitary lymph follicles are found scattered in beneath the ...
  • Mucosa-Associated Lymphoid Tissue
    Mucosa-Associated Lymphoid Tissue The mucosal lining of the alimentary canal and airways is in many ways specialised to facilitate the e...
  • Ganglia are aggregations of nerve cells
    Ganglia Ganglia are aggregations of nerve cells (ganglion cells) outside the CNS . Cranial nerve and dorsal root ganglia are surrounded ...
  • Blood Vessels - Spleen
    Blood Vessels Blood vessels enter the lymph nodes through the hilus and travel initially in the connective tissue trabeculae that extend ...
  • Glial Cells
    Glial Cells CNS tissue contains several types of non-neuronal, supporting cells, neuroglia . Astrocytes (or astroglia) are...
  • Peripheral Nervous System (PNS)
    Peripheral Nervous System (PNS) The PNS comprises all nervous tissue outside the brain and spinal cord. It consists of groups of neurone...
Copyright 2013 Digital Signal Information - All Rights Reserved
Template by Mas Sugeng - Powered by Blogger