Tissue Types (Locations, Functions and pictures)

simple squamous

Epithelial: lines airsacs of lungs & capillaries

Single thin layer allows for easy diffusion of substance

simple cuboidal

Epithelial: lines renal tubules in kidney, surface of ovaries and forms many glands

Secretes substances

simple columnar

Epithelial: lines digestive system; characteristic Goblet cells secrete mucus, also creates protective barrier against bacteria in gut

stratified squamous

Function: protects underlying tissues in areas subject to abrasion

Location: nonkeratinized type forms the moist lining of the esophagus, mouth, and vagina; keratinized type forms the epidermis of the skin, a dry membrane.

transitional

Epithelial: numerous layers of cells with varying shape; able to be stretched

Found in bladder and urinary tract

pseudostratified columnar

Epithelial: ciliated version lines respiratory system; secretes mucus with Goblet cells; cilia moves mucus into oral cavity

bone

Connective: hard calcified matrix, many collagen fibers

Support, protection and mineral storage

hyaline cartilage

Connective: collagen fibers, rubbery matrix

Found in ribs and fetal skeleton

elastic cartilage

Connective: elastic fibers

Found in epiglottis, outer ear, and trachea

areolar

Connective: (also called loose connective)characteristic Fibroblast cells, all three fibers visible in matrix(collagen, elastin & reticular).

Found in almost every part of the body. It surrounds blood vessels and nerves and penetrates with them into the small spaces of muscles, tendons, and other tissues.

Binds and provides cushioning

dense fibrous

Connective: Characteristic some Fibroblast cells with dense collagen matrix

Regular: Found in tendons & ligaments

Irregular: Found in dermis of skin

blood

Connective: matrix is mostly water, fibers only present during clotting, characteristic cells erythrocytes, some leukocytes

adipose

Connective: minimal matrix, characteristic fat cells, stores fat droplet inside cell, nucleus pushed to side.

Found deep to skin and surrounding many organs.

reticular

Connective: Characteristic fibroblast cells also contains many white blood cells(leukocytes) surrounded by delicate fibers

Found supporting network around the liver, the kidney, the spleen, and lymph nodes. Also found in bone marrow.

skeletal

Muscle: striations, many peripheral nuclei

Found attached to bones

moves skeleton

smooth

Muscle: no strations, tapered cell, one center nucleus

Found in most hollow organs/blood vessels

moves substances through organs

cardiac

Muscle: characteristic intercalated discs, branching cells, one center nucleus

Found in heart, moves blood through vessels

neuron

Nervous: characteristic neuron (nerve cell),

sends messages

fibrocartilage

Connective: combination of tissues

Found in pubic symphysis(between pelvic bones) and intervertebral discs