chapter 5 - tissues Flashcards
that tissue which conducts the specific function of the organ and which usually comprises the bulk of the organ
parenchyma
supports the parenchyma; comprises everything else (connective tissues, blood vessels, nerves, ducts)
stroma
anchors epithelium to underlying connective tissue
basement membrane
single layer of thin, flattened cells through which substances pass easily (gas exchange, filtration)
simple squamous epithelium
Where are simple squamous located?
Lungs, alveoli
Single layer of cube-shaped cells; carries on secretion and absorption functions
simple cuboidal
Where is simple cuboidal located?
Kidney tubules and ducts
Single later of elongated cells whose uncle are near the basement membrane; contains goblet cells that secrete mucus; have microvilli on top
simple columnar
Where is simple columnar located?
Lines the uterus and portions of the digestive tract (small intestine, large intestine, and stomach)
appears stratified, where nuclei are at two or more levels, cilia is present on apical surface
pseudostratifed columnar
Where are pseudostratifed columnar located?
Line the respiratory passages
composed of many layers of cells, top layers are flattened, where they protect underlying cells from harmful environmental effects
stratified squamous
Where is stratified squamous located?
Superficial portion of skin, oral, vaginal, and anal cavities
composed of two or three layers of cube-shaped cells; important for containment
stratified cuboidal
Where is stratified cuboidal located?
Lines the ducts of mammary glands, sweat glands, salivary glands, pancreas
two layers of elongated cells, not ciliated
stratified columnar
Where is stratified columnar located?
ONLY in urethra
specialized to stretch, change in response to increased tension
transitional epithelium
Where is transitional epithelium located?
Forms the inner lining of the urinary bladder and lines the ureters and superior urethra
Composed of cells specialized to produce and secrete substances into ducts or into body fluids; usually found within columnar or cuboidal epithelium
Glandular epithelium
Composed of simple cuboidal cells
glands
secrete watery fluids without the loss of cytoplasm (exocytosis)
merocrine gland
lose portions of their cells during secretion; mammary glands
apocrine glands
release cells filled with secretions (hair)
holocrine glands
intestinal glands of small intestine
simple tubular
sweat glands of the skin
simple coiled tubular
bulbourethral glands of males
compound tubular
mammary glands
compound alveolar
gastric glands
simple branched tubular
sebaceous glands of skin
simple branched alveolar
LOOSE, forms thin membranes between organs and binds them, thick and thin fibers are present with lots of space
loose areolar connective tissue
Where is loose areolar tissue located?
In the calves
stains light, nuclei are pushed off to the side; stores fat, cushions, and insulates
adipose tissue
Where are adipose tissue located?
Everywhere, around hair follicle
stains dark, lots of dark spots and hair like fibers
reticular tissue
Where is reticular tissue located?
Only in the liver
WAVY, closely packed = STRONG; largely composed of strong,collagen fibers that bind structures; lousy blood supply
dense regular connective tissue
Where is dense regular tissue located?
Tendons and ligaments
thin hairs intermixed with collagenous fibers
elastic connective tissue
Location of elastic connective tissue
connecting parts of spinal column
