Epithelial Tissue Flashcards
Tissue
Similar cells working together to preform a task
Lumen
Inside of hallow organ
Lining
Inside lumen
Covering
Outer of lumen
Name organ example of lumen
Intestines, blood vessels
Where can epithelial tissue be found
Skins surface, lining of hallow organs
Which tissue has the highest chance of regeneration
Epithelial tissue
What is the skin (free side) of the tissue called
Apical surface
Which surface is bound to tissue
Basal
Does epithelial tissue have blood vessels?
No
Define basement membrane
Double layered cells that sit between epithelial tissue and connective tissue
What other characteristics does apical have
Cilia and microvilli
In order describe the epithelial tissues
Top (apical)
Middle (basal)
Basement membrane
What are goblet cells
Mucous secreting cells
What does the epithelial tissue DO
Protect, absorb, stretch, secrets and filters
What is a single layer of cells touching the basement membrane
Simple epithelial tissue
What does stratified mean
2 or more layers
Name the three simple cell shapes
1.) squamous
2.) cuboibal
3.) columnar
Name the tissue that has single flat cells with centrally located nucleus
Simple squamous
What specific organ can you find simple squamous in
Lining of lumen of blood vessels or wall of bowman’s capsules in kidneys
Name a function of simple squamous
Diffusion
Single layer cube like cells
Simple cuboidal
Where can you find simple cuboidal cells
Walls of kidney tubules, surface of ovaries
What do the cuboidal cells do
Secret, reabsorption in tubules of kidney
Tall column like cells, single layer, nuclei is oval and near basement membrane
Columnar cells
Where can you find simple columnar cells
Lines lumen of uterine tubes, or lines lumen of gallbladder
What do columnar cells do
Secrete , absorb nutrients and water in intestines
What is the cells that differ in height, touches the basement membrane and have cilia, and nuclei sit in different spots
Pseudo stratified cilliated columnar
What does pseudo mean
False
Where can you find pseudo stratified cilliated columnar
Lining of trachea
What is the main function of pseudo stratified cilliated columnar
Trapping mucous secretion from goblet cells, cilia helps move trapped particles
Many layers of cells, cells become flatter near apical (skin),
Stratified squamous
Where can you find stratified squamous cells
Skin layer, lining of mouth,
What is the function of stratified squamous
Protection of abrasion, pathogens, and water loss
This looks like stratified squamous but have more visible nuclei, can go from very stacked to expanded and stacked
Transitional epithelial
Where can you find transitional epithelial
Lining of bladder
What is the function of transitional epithelial
Allows space to expand or contract as urine collects
