epithelial tissue types

How do you classify epithelial tissue

By shape and how many layers

What do squamous cells look like

Flat and scale like

What do cuboidal cells look like

Box/ cube like with a round nucleus

What do columnar cells look like

Tall, column shaped, with a elongated nucleus

In stratified epithelial, the cell shape is classified from which layer

Apical layer

Were is simple squamous found

Air sacs of lungs

Blood and lymphatic vessels

Kidney glomeruli

Lining of heart

Serous membranes

What is the function of simple squamous

Absorption

Diffusion

Filtration

Secretion

What is endothelium

Lining of blood vessels, heart, lymphatic vessels

What is Mesothelium

Epithelium of serous membranes

What types of tissue is this

Simple squamous epithelial

What epithelial tissue allows materials to pass by diffusion and filtration

Simple squamous epithelial

Where can simple cuboidal epithelial be found

Kidney tubules

Ducts and glands

Ovaries

What is the function of simple cuboidal epithelial

Absorption and secretion

What types of tissue is this

Simple cuboidal epithelial

Where is simple columnar epithelial tissue found

Non ciliated: digestive tract (stomach to rectum), gallbladder, some exocrine glands

Ciliated: small bronchi in lungs, uterine tubes, parts of uterus

What is the function of simple columnar epithelial

Absorption

Secretion of mucus

What type of cells do similar columnar epithelial have

Goblet cells- mucus secreting cells

What type of tissue is this

Simple columnar epithelial

Where is pseudostratified epithelial tissue located

Non ciliated:

Testes and ducts of large glands

Ciliated:

Trachea and upper respiratory tract

What is the function of pseudostratified columnar epithelial

Secretion of mucus

Mucus elevator

Which epithelial tissue involves your mucus elevator

Pseudostratified columnar epithelial

What type of tissue is this

Pseudostratified columnar epithelial

Where is stratified squamous epithelial located

Keratinized- epidermis

Non keratinized - lining of mouth, esophagus, vagina

What is the function of stratified squamous epithelial

Protection of underlying tissues

Are the surface cells of stratified squamous dead?

Yes

What do the basal cells id stratified squamous do?

Active in mitosis

Produces the cells of more superficial layers

What tissue is this

Stratified squamous epithelial

What are the 2 rare tissues

Stratified cuboidal and stratified columnar

Where is stratified cuboidal located

Sweat and mammary glands

What is the function of stratified cuboidal epithelial

Secretion

What type of tissue is this

Stratified cuboidal

Where do you find stratified columnar epithelial tissue

Pharynx

Male urethra

Transition areas of 2 types of epithelial tissues

What is the function of stratified columnar epithelial

Secretion and protection

What type of tissue is this

Stratified columnar epithelial

Where is transitional epithelial tissue located

Lines the uterus, bladder, and part of urethra

What is the function of transitional epithelial

Allows stretch- apical

Basal cell’s cuboidal or columnar

What does transitional epithelial resembles

Both stratified squamous and stratified columnar

What type of tissue is this

Transitional epithelial