Classify/Types. Epithelial Tissue

How do you classify Epithelial Tissue?

First Name - Number of cell layers & Last Name- shape of the cell

What is the name for one cell layer in Epithelial Tissue?

Simple

What is the name for “more than one cell layer” in Epithelial Tissue

Stratified

What is the shape of Squamous cell?

square & flat

What is the shape of Cubodial cell?

cube

What is the shape of Columnar cell?

Tall & like a column

What is function of Squamous cell in Simple Epithelia?

diffusion and/or filtration

What is the function of the Columnar Cells in Simple Epithelia?

Secretion & Absorption

What is the function of the Cuboidal Cell in Simple Epithelia?

Secretion & Absorption

How do you named shape of cells in Stratified Epithelia?

In the apical layer.

What are the functions of the (ALL) cells in Stratified Epithelia?

Protection

What are the accessory structures?

Cilia (movement) & Keratin (tough protein- strength)

What are the special epithelial tissues? (Don’t follow naming convention)

Pseudostratified & Transitional

What is the formula for Naming Epithelia?

Accessory (~ed) + # of cell layers + shape of cell + epithelia/epithelium

Simple Squamous Epithelium

A single layer of flattened cells

What is the function of Simple Squamous Epithelium?

Thin & flexible cells allow for the movement of materials by diffusion & filtration in locations where protection is not important

Where is locations of Simple Squamous Epithelium?

Kidneys, Air sacs of the lungs, Lining of blood & lymphatic vessels

Simple Cuboidal Epithelium

A single layer of cube-like cells

What is the function of Simple Cuboidal Epithelium?

Secretion & Absorption

What are the locations of Simple Cuboidal Epithelium?

Kidney tubules, ducts, secretory portions of small glands; The ovary

Simple Columnar Epithelium

a single layer of tall cells

What is the function of Simple Columnar Epithelium?

Absorption & the secretion of mucus

What are the locations of Non-Ciliated Simple Columnar Epithelium?

Lines in the digestive tracts (stomach to anus) & ducts of some glands

What are the locations of Ciliated Simple Columnar Epithelium?

Lines the bronchi in the respiratory tract, uterine tubes, and some part of the uterus

Pseudostratified Columnar Epithelium

A single layer of cells of differing heights, not reaching the apical surface; appears like it is stratified but it doesn’t

What is the function of Pseudostratified Columnar Epithelium?

Secretion of mucus

What are the locations of Non-Ciliated Pseudostratified Columnar Epithelium?

Sperm-carrying ducts in males, and ducts of large glands

What are the locations of Ciliated Pseudostratified Columnar Epithelium?

Lines the trachea, most of the upper respiratory tract

What are other epithelial cells that propel mucus?

Ciliated Simple Columnar Epithelium & Ciliated Pseudostratified Columnar Epithelium

Stratified Squamous Epithelium

many layers of thin, flattened cells

What is the function of Stratified Squamous Epithelium?

protect underlying tissues in areas subject to abrasion

What is the function of Keratinized Stratified Squamous Epithelium

Acts as a protective cover of the body; contains the protective protein keratin.

What is the function of Non-keratinized Stratified Squamous Epithelium

forms moist lining of body openings

What are the locations of Keratinized Stratified Squamous Epithelium?

Forms the epidermis (skin)

What are the locations of Non-Keratinized Stratified Squamous Epithelium?

forms lining of esophagus, mouth, & vagina

Stratified Cuboidal Epithelium

generally two layers of cube-like cells

What is the function of Stratified Cuboidal Epithelium?

Protection

What are the locations of Stratified Cuboidal Epithelium?

Sweat glands, Mammary glands, & Salivary glands

Transitional Epithelium

resembles both stratified squamous & stratified cuboidal

What is the function of Transitional Epithelium?

stretches readily & allows for the distension of the bladder when filled with urine

What are the locations of Transitional Epithelium?

lines the uterus bladder, & part of the urethra