Quiz 4

Question 1

where is epithelium found in the body

Answer 1

internal and external surface of the body, lines body cavities, and hollow organs

Question 2

polarity

Answer 2

the membranes always have one free surface (apical surface)

Question 3

epithelium is supported by

Answer 3

connective tissue

Question 4

basement membrane is secreted by

Answer 4

basal lamina

Question 5

avascularity

Answer 5

having no blood supply of their own

Question 6

high regeneration

Answer 6

easily replace themselves if they are damaged

Question 7

four functions of epithelial tissue

Answer 7

selective permeability, physical protection, secretion, sensory reception

Question 8

covering and lining epithelia are categorized by

Answer 8

cell layers and shapes of cells in those layers

Question 9

simple epithelium

Answer 9

single layer of cells with every cell in direct contact with basement membrane

Question 10

stratified epithelium

Answer 10

more than one layer, undergoes mitotic division

Question 11

squamous epithelium

Answer 11

protective functions; protects underlying tissues in areas subjected to abrasion

Question 12

cuboidal epithelium

Answer 12

single layer of cube-like cells; secretion and absorption

Question 13

columnar epithelium

Answer 13

single layer of tall cells with oval nucleus; absorption secretion, enzymes

Question 14

pseudo stratified epithelium

Answer 14

single layer of cells of differing heights, secretion; propulsion of mucus by ciliary action

Question 15

transitional epithelium

Answer 15

resembles stratified squamous and cuboidal; stretches and permits distension of urinary organ; lines uterus, bladder, and part of urethra

Question 16

stratified epithelia are named according to cells at the

Answer 16

apical membrane

Question 17

simple squamous

Answer 17

simplest epithelium; allows passage of materials by diffusion and filtration in sites where protection is not important; secretes lubricating substances in serosae

Question 18

location of simple squamous

Answer 18

located in kidney glomeruli, air sacs of lungs, lining of heart, blood vessels, lymphatic vessels, lining of ventral body cavity

Question 19

location simple cuboidal

Answer 19

kidney tubules, ducts and secretory portions of small glands; ovary surface

Question 20

simple columnar

Answer 20

absorption, secretion of mucus, enzymes and other substances; ciliated type propels mucus (or reproductive cells) by ciliary action

Question 21

location of simple columnar

Answer 21

non-ciliated type: lines most of the digestive tract (stomach to anal canal), gallbladder, and excretory ducts of some glands
ciliated type: lines small bronchi, uterine tubes, and some regions of the uterus

Question 22

stratified squamous

Answer 22

thick membrane composed of several cell layers; basal cells are cuboidal or columnar and metabolically active; surface cells are flattened (squamous); in the keratinized type: the surface cells are full of keratin and dead; basal cells are active in mitosis and produce the cells of the more superficial layers

Question 23

location of stratified squamous

Answer 23

non-keratinized type: forms the moist linings of the esophagus, mouth, and vagina
keratinized type: forms the epidermis of the skin, a dry membrane

Question 24

location of pseudo stratified columnar

Answer 24

non-ciliated type in male’s sperm carrying ducts and ducts of large glands
ciliated: lines the trachea, most of the upper respiratory tract

Question 25

epidermis of the skin

Answer 25

stratified squamous

Question 26

alveolar sacs of lungs

Answer 26

simple squamous

Question 27

lining of trachea

Answer 27

pseudo stratified columnar

Question 28

lining of stomach

Answer 28

simple columnar

Question 29

auditory tube lining

Answer 29

pseudo stratified columnar

Question 30

peritoneum

Answer 30

simple squamous

Question 31

lining of mouth

Answer 31

stratified squamous

Question 32

lining of blood vessels

Answer 32

simple squamous

Question 33

lining of urinary bladder

Answer 33

squamous (transitional)

Question 34

lining of vagina

Answer 34

stratified squamous

Question 35

lining of male urethra

Answer 35

pseudo stratified columnar

Question 36

lining of pharynx

Answer 36

stratified squamous

Question 37

parotid gland

Answer 37

stratified cuboidal

Question 38

intestinal lining

Answer 38

simple columnar

Question 39

lining of kidney tubules

Answer 39

simple cuboidal