Lab test 1: epithelial and connective tissues

simple squamous epithelium

function: filtration, absorption, secretion

location: kidneys, lungs, capillaries, blood vessel linings

simple cuboidal epithelium

function: absorption, secretion

location: kidney, ovaries, glands, thyroid

simple columnar epithelium (non-ciliated)

function: absorption, secretion

location: (digestive tract) stomach, small intestine, large intestine

simple ciliated columnar epithelium

function: secretion, movement of mucus along cilia, moves oocyte through uterine tubes

location: (respiratory tract) larger bronchioles (lungs), uterine tubes

pseudostratified columnar epithelium (non-ciliated)

function: protection

location: (rare) lining of male urethra and epididymis

pseudostratified ciliated columnar epithelium

function: absorption, secretion of mucous along cilia

location: (respiratory tract) trachea, bronchi, nasal cavity, bronchioles, sperm ducts

nonkeratinized stratified squamous epithelium

function: protection from abrasion

location: mouth, pharynx, esophagus, anal canal, vagina

keratinized stratified squamous epithelium

function: protection from abrasion

location: epidermis of skin

stratified cuboidal epithelium

function: protection

location: mammary ducts , sweat glands, salivary glands, pancreas

stratified columnar epithelium

function: protection, secretion

location: vas deferens, male urethra

transitional epithelium

function: protection, stretching (urine volume changes)

location: urinary bladder, ureters, urethra

areolar CT

function: cushions organs, fluid resevoir, BV to supply organs

location: under epithelial tissues, upper dermis

main cells: fibroblasts

matrix: ground substance, collegen, elastic fibers, reticular fibers

adipose CT

function: support, padding, insulation, protection

location: subcutaneous around heart, kidneys, breast, abdomen

cells: adipocytes

matrix: extracellular - areolar connective tissue

dense regular (white fibrous) CT

function: resists tension in single direction

locations: tendons (muscle-bone), ligaments (bone-bone)

cells: fibroblasts

matrix: collagen fibers

loose reticular CT

function: supports cells in organs

location: lymphoid organs (spleen, lymph nodes, red bone marrow)

cells: fibrocytes, leukocytes

matrix: ground substance, reticular fibers

dense irregular CT

function: resists tension in many directions

location: lower dermis, capsules around organs

cells: fibroblasts

matrix: ground substance, blood vessels, collagen fibers

elastic CT

function: stretching and recoil

location: artery walls, trachea, vocal cords

cells: fibroblasts

matrix: elastic fibers, ground substance

fibrocartilage

function: provides cushioning

location: between vertebrae, knee pads

cells: chondrocytes

matrix: collagen fibers, limited ground substance

Bone

function: leverage, support, protection

location: skeleton

cells: osteocytes (lacunae)

matrix: calcified matrix

blood

function: transport, protection, regulation of pressure and temp

location: blood vessels

cells: erythrocytes, leukocytes

matrix: liquid matrix

skeletal muscle

function: voluntary motion

location: attached to skeleton, circular motion - urethra, anal canal

cells: parallal, multinucleated, striations

matrix: —

cardiac muscle

function: contraction, relaxation

location: heart wall

cells: large, striated, uninucleated, intercalated disks

smooth muscle

function: contraction

location: walls of hollow organs, arrector pili

cells: small, uninucleated, no striations, spindle-shaped

nervous tissue

function: information transfer

location: cranial, vertebral canals

cells: neurons - large and small