Lab 3: Histology

Objectives of lab 3 to prepare for quiz on 9/15

Where is Simple Squamous epithelium tissue located?

-Kidney Glomeruli

-Air Sacs of lungs

-Lining of heart, blood vessels, and lymphatic vessels

Function of Simple Squamous epithelium tissue?

-Diffusion and Filtration

-Allows materials to pass by diffusion and filtration in sites where protection is not important; secretes lubricating substances in serosae

Picture of Simple Squamous Epithelium tissue

Where is Simple Cubodial Epithelium tissue located?

-Kidney Tubules

-Ducts and secretory portions of small glands; ovary surface

What is the function of simple cubodial epithelium tissue?

Secretion and absorption

Picture of Simple Cubodial Epithelium tissue

Where is simple ciliated columnar epithelium tissue located?

-Small bronchi

-uterine tubes and lines the central canal of the spinal cord

What is the function of simple ciliated columnar epithelium tissue?

Produces and propels mucous

Picture of Simple ciliated columnar epithelium

Where is Simple non-ciliated columnar epithelium tissue located?

-Lines digestive tract from stomach to rectum

What is the function of Simple non-ciliated columnar epithelium tissue?

Absorption and secretion

Picture of simple non ciliated columnar epithelium

Where is pseuodostratified ciliated columnar epithelium located?

-Found in most of Upper respiratory tract (URT) and trachea

What is the function of pseuodostratified ciliated columnar epithelium?

Function in secretion (primarily mucous) and movement of mucous by cilia

Picture of pseuodostratified ciliated columnar epithelium

Where is stratified keratinized squamous epithelium located?

-Found in epidermis of skin

What is the function of stratified keratinized squamous epithelium?

Protects the underlying tissue against abrasion and acts as a barrier

Picture of stratified keratinized squamous epithelium

Where is stratified non-keratinized squamous epithelium located?

-Lines the mouth, esophagus, and vagina

What is the function of stratified non-keratinized squamous epithelium?

Protects underlying tissue against abrasion

Picture of stratified non-keratinized squamous epithelium

Where is Transitional Epithelium located?

-Found in the urinary bladder, ureters and part of the urethra

What is the function of Transitional Epithelium?

-To allow stretching-distension

Picture of Transitional Epithelium

Where is areolar connective tissue located?

-Found under epithelia-widely distributed

What is the function of areolar connective tissue?

Wraps and cushions organs; has macrophage role in inflammation; hold tissue fluid

Picture of areolar connective tissue

Where is adipose connective tissue located?

-Found under the skin, around the kidney, eyeballs, and breasts

What is the function of adipose connective tissue?

-Cushioning, energy storage, insulation from cold or heat

Picture of adipose connective tissue

Where is reticular connective tissue located?

-Found in the spleen, lymph organs

What is the function of reticular connective tissue?

-Supports, acts as an internal skeleton

Picture of reticular connective tissue

Where is Elastic Connective tissue located?

-Found in the walls of the arteries

What is the function of Elastic Connective tissue?

-Allows for stretch and recoil

Picture of elastic connective tissue

Where is dense regular connective tissue located?

-Found in tendons, ligaments, and aponeuroses

What is the function of dense regular connective tissue?

-Allows strength against pulling forces

-Attaches muscle to bone or to other mucles