Exam 1 Study Guide Questions And
Correct Answers.
basement membrane - Answer Layer between epithelium and underlying connective tissue
basal surface - Answer cell surface facing the basement membrane
apical surface - Answer cell surface that faces away from the basement membrane
lateral surface - Answer cell surface between the basal and apical surface, "sidewall"
simple epithelia - Answer -a single layer of cells
- all cells touch basement membrane
stratified epithelia - Answer - multiple layers of cells
- some cells rest on top of each other
- not all cells touch the basement membrane
simple squamous - Answer - single row of thin cells
- permits rapid diffusion or transport of substances
- secretes serous fluid
- line capilaries
location of simple squamous epithelium - Answer lungs (aveoli), kidney (glomeruli), endothelium, and
serosa
simple cuboidal - Answer - single layer of square or round cells (puffy looking)
,- absorption and secretion
- mucus production and movement
location of simple cuboidal epithelium - Answer liver, thyroid, mammary and salivary glands,
bronchioles, and kidney tubules
simple columnar - Answer - single row of tall, narrow cells
- oval nuclei in basal half of cell
- brush border of microvilli
- ciliated in some organs
- may possess goblet cells
- absorption and secretion (secretion of mucus)
- tight junction
Goblet cells can be found in: - Answer in simple columnar and pseudostratified columnar
location of simple columnar epithelium - Answer The lining of the GI tract, the uterus, renal collecting
ducts of the kidneys, fallopian (uterine) tubes, and gallbladder
pseudostratified columnar epithelium - Answer - looks multi layered, but all cells touch the basement
membrane
- nuclei at several layers
- has cilia and goblet cells
- secrets and propels mucus
locations of pseudostratified columnar epithelium - Answer respiratory tract and portions of male
urethra
what are the 2 types of stratified squamous epithelium - Answer 1. keratinized stratified squamous
2. non-keratinized stratified squamous
, keratinized stratified squamous - Answer - multiple cell layered; cells become flat and scaly toward the
surface
- resists abrasion; retards water loss through skin
- resists penetration bt pathogenic organisms
location of keratinized stratified squamous - Answer epidermis; palms and soles heavily keratinized
non-keratinized stratified squamous - Answer -Same as keratinized epithelium without the surface layer
of dead cells
-Resists abrasion and penetration of pathogens
Location of non-keratinized stratified squamous epithelium - Answer tongue, oral mucosa, esophagus,
and vagina
stratified cuboidal epithelium - Answer - 2 or more layers of cell; surface cells square or round
- contributes to sweat secretion
- produces sperm and ovarian hormones
location of stratified cuboidal epithelium - Answer - sweat gland ducts
- ovarian follicles
- seminiferous tubules
Urothelium (transitional epithelium) - Answer - Multilayered epithelium with surface cells that change
from round to flat when stretched
- Allows for filling of urinary tract
- goes through large pressure changes (is able to withstand these changes)
Location of Urothelium (Transitional epithelium) - Answer - ureter
- bladder