Epithelial tissue Images

Simple

One layer of epithelial cells and one basement layer

Stratified

More than one layer

Shape: Squamous

Scale-like; flattened

Shape: Cuboidal

square; looks like dice

Shape: Columnar

Elongated

Simple squamous

in membranes: air sacs, walls of capilaries, serous membranes

Simple cuboidal

glands (salivary gland) and ducts (pancreas), walls of kidney, ovaries

simple columnar

Goblet cells- lubricating mucus of stomach and anus

Psuedostratified

Appear stratified because of different sized cells, often ciliated; respiratory system

Stratified squamous

resist abrasion; mouth, esophagus, skin

Transitional epithelial

type of epithelium that can stretch; bladder ureters, urethra

Glandular epithelial

Make and product a secretion (usually proteins and water)

Stratified Cuboidal

lines larger ducts - sweat glands - salivary glands

stratified columnar epithelium

Function: protection and secretion

Location: rare in the body; small amounts in male urethra

What are three functions of connective tissue?

Support, protection, and connecting tissues.

Is connective tissue deep tissue?

True.

What connective tissue is shown by red blood cells?

Blood (fluid connective tissue).

What are the three basic components of connective tissue?

Cells, fibers, and ground substance.

Give one example of connective tissue proper.

Areolar tissue.

What connective tissue makes up the skeleton?

Bone (osseous tissue).

What is the ground substance of connective tissue proper?

Gel

What is the ground substance of cartilage?

Firm gel containing chondroitin sulfate.

Which connective tissue has liquid ground substance?

Blood; its liquid ground substance is plasma.

What is the ground substance of bone?

Hard, mineralized material containing calcium phosphate.

Match the epithelial tissue with the correct description

Identify each tissue by its cell shape and number of layers.

Simple squamous epithelium

One thin layer of flat cells; found in lung air sacs and blood vessels; allows diffusion and filtration.

Simple cuboidal epithelium

One layer of cube

Simple columnar epithelium

One layer of tall cells; found in the stomach and intestines; absorption and secretion.

Ciliated simple columnar epithelium

Tall cells with cilia; found in uterine tubes; moves eggs along.

Pseudostratified columnar epithelium

Tall cells that look like multiple layers; found in the respiratory tract; produces and moves mucus.

Stratified squamous epithelium

Many layers of flat cells; found in the skin, mouth, and esophagus; protects against damage.

Keratinized stratified squamous epithelium

Many layers with a tough, waterproof protein; found in the outer skin; protects against water loss and injury.

Nonkeratinized stratified squamous epithelium

Many layers of moist, flat cells; found in the mouth and esophagus; protects against friction.

Stratified cuboidal epithelium

Two or more layers of cube

Stratified columnar epithelium

Multiple layers with column