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Epithelial Tissue

where is simple squamous located? wherever rapid diffusion or filtration take place.
Where is stratified squamous located? surface of skin, lining of mouth & throat
Where is simple cuboidal located? glands, ducts, portions of kidney tubules
Where is stratified cuboidal located? lining of some passage ways that carry fluids (ducts) - RARE
Where is simple columnar located? Throughout body's organ systems (digestive & reproductive), nasal passage, buccal cavity, and eyes.
Where is stratified columnar located? salivary glands (cell lining protects the salivary duct) & vans deferens (protects and aids in secretion of glands intestinal lining
Where is pseudostratified ciliated columnar located? mainly in tracheal and bronchial regions & fallopian tubes
Where is transitional located? lining of urinary tract & ureter
What is the function of simple squamous? reduces friction, controls vessel permeability, & performs absorption and secretion
What is the function of stratified squamous? provides physical protection against abrasion
What is the function of simple cuboidal? limited protection, secretion and/or absorption
What is the function of stratified cuboidal? protection
What is the funtion of simple columnar? main function to protect against bacteria and surface damage, sensory input, & absorbing and transporting nutrients
What is the function of stratified columnar? secretion & protection
What is the function of Pseudostratified Ciliated Columnar? secretes mucous to form a mucosal layer & propels mucous away from the lungs to protect from causing protection
What is the function of transitional? elasticity; stretch & retract
Characteristic of ET - Avascular No blood vessels, obtains 02 nutrients from diffusion
Structure of Basement Membrane - Basal Lamina layer closest to the cells, rapid diffusion
Structure of Basement Membrane - Reticular Lamina layer furthest from cells, anchorage
CELLS - nucleus info & coordination, position dependent on tissue type
CELLS - Interfacial Canal space between cells, chem communication, diffusion
CELLS - Microvilli or Cilia finger like projections that increase surface area for absorption or tiny hairs for movement
FUNCTIONS - Protections/Lining cavities, organs
FUNCTIONS - Regulation cell communication, homeostasis
FUNCTIONS - Permeability diffusion of waster & nutrients, absorption and excretion
CLASSIFICATION - Cell Shape (squamous) round
CLASSIFICATION - Cell Shape (cuboidal) cube-like, rounded edges
CLASSIFICATION - Cell Shape (columnar) tall, vertical rectangles
CLASSIFICATION - # of cell layers simple (one) stratified (more than one)
Created by: mmarquis14