Tissue

Single row of flat scale-like cells

Function: Permits diffusion of substances; osmosis, filtration.

Secretes lubricating serous fluid

Found in: Alveoli, glomeruli, endothelium of blood vessel, and serosa.

Single row of cube-shaped cells with microvilli

Function: ablorption and secretion, mucus production

Found in: Liver, thyroid, mammary and salivary glands, bronchioles, lens capsule and kidney tubules.

• Single row tall, rectangular narrow cells
•  -with or without mocrovilli
•  -oval nuclei in basal half of cell. Has goblet cells
•  -May be ciliated or nonciliated
• Function: Ablorption and secretion: mucus secretion 

Found in: Lining of the GI Tract, uterus, kidney and uterine.

• All cells are attached to the basement membrane but all cells do not reach the apical (free) surface
•  -nuclei at varying depth and give layer a stratified look

Function: Secretes and propels respiratory mucus 

Found in: upper respiratory tract, epididymis

Multilayered epithelium covered with dead squamous cells, packed with karatin

 -epidermal layer of skin

Function: Retards water loss and barrier to organisms

Multilayered surface epithelium forming moist, slippery layer.

Found in: Tongue, oral mucosa, esophagus and vagina

Two or more cell layers; apical surface cells square 

Function: Secretes sweat; produces sperm and hormones

Found in: Seat gland ducts: ovarian follicles and seminiferous tubules

Found in areas subject to stretching

Multilayered epithelium sureface cells that change from round to flat when stretched 

• Function: allows for filling of urinary tract,
• ureter and bladder

Loose arrangement of fibers and cells in abundant ground substance

Underlies all epithelia, between muscles, passage ways for nerves and blood vessels

Seen in serous membranes

Loose network of reticular fibers and cells

Forms wupportive stroma (framework) for lympatic organs

Found in: Lymph nodes, spleen, thymus and bone marrow

• Function: Energy storage, insulation, cushioning 
•  -subcutaneous fat and organ packing
•  -brown fat (hibernating animals) produces heat

• Densely, packed, parallel collagen fibers
•  -compressed fibroblast nuclei

Found in: tendons and ligaments

Function: hold bones together and attach muscle to bones

Densely packed, randomly arranged, collagen fibers and few visible cells

Function: withstands stresses applied in different directions

Found in: deeper layer of skin; capsules around organs

Found in the stroma of the lungs and in the walls of the large arteries

Rubbery matrix; few dispersed collagen fibers; clustered chondrocytes in lacunae

Function: Provide smooth surface for joint movement, supports airway, flexibility

Found in: Ends of bones at movable joints; sternal ends of ribs, nose, supportive material in larynx, trachea, bronchi and fetal skeleton

Large with extensive collagen fibers (never has perichondrium) 

Function: Resists compression and absorbs shock 

Found in: Pubic symphysis, meniscus and intervertebral discs, fontanelles

Lots of elastic fibers, has a perichondrium

• Function: Provides flexible, elastic support 
•  -external ear and epiglottis, eustation tube