Lab 3

Question 1

simple

Answer 1

single layer of cells

Question 2

stratified

Answer 2

two or more cell layers on top of one another

Question 3

pseudostratified

Answer 3

appears stratified but really only a single layer of cells

Question 4

squamous

Answer 4

thin, flat cells

Question 5

cuboidal

Answer 5

like dice

Question 6

columnar

Answer 6

width of cell shorted than height

Question 7

basement membrane

Answer 7

connective tissue epithelial tissue is anchored to; made of collagen IV, laminin, and proteoglycans

Question 8

epithelial tissue

Answer 8

cover all surfaces of the human body; developed by the endocrine and exocrine glands

Question 9

simple squamous epithelium

Answer 9

easy diffusion, exchange of gases

Question 10

where are simple squamous epithelium found

Answer 10

alveoli of the lung, kidney, blood vessels, body cavity lining, visceral organs

Question 11

vascular endothelium

Answer 11

simple squamous epithelium lining blood vessels

Question 12

mesothelium

Answer 12

simple squamous epithelium covering the vicera

Question 13

simple cuboidal epithelium

Answer 13

large nucleus, absorption, secretion, and excretion

Question 14

where are simple cuboidal epithelium found

Answer 14

female ovaries, lining of the capsule of the lens of the eye, forming the tubule system in the kidneys, lining small secretion ducts and glands

Question 15

simple columnar epithelium

Answer 15

nucleus toward basement membrane, can have microvilli or cilia

Question 16

where are simple columnar epithelium found

Answer 16

small intestine, stomach, nasal sinuses, central canal of the spinal cord

Question 17

goblet cells

Answer 17

simple columnar epithelium in the small intestine; mucus-secreting simple columnar epithelium cells

Question 18

where are pseudostratified ciliated columnar epithelium found

Answer 18

upper respiratory tract, male reproductive system

Question 19

stratified squamous epithelium

Answer 19

only cells in upper layers take on squamous shape; division occurs at the lower layers

Question 20

where are stratified squamous epithelium found

Answer 20

outer layers of skin, mouth, throat, esophagus, vagina, and anal canal

Question 21

keratin

Answer 21

protein that causes cells in stratified squamous epithelium to harden and die, creating a protective barrier

Question 22

transitional epithelium

Answer 22

bottom layers of squamous, outer cells are cuboidal, can change under the influence of pressure

Question 23

where are transitional epithelium found

Answer 23

urinary bladder, ureters, and urethra

Question 24

glandular epithelium

Answer 24

single cell or group that secrete substances produced within the cell into ducts (form glands)

Question 25

where are glandular epithelium found

Answer 25

sweat glands, salivary glands

Question 26

hormones

Answer 26

secretions of the endocrine glands

Question 27

endocrine

Answer 27

cells secreting things into the blood stream

Question 28

exocrine

Answer 28

cells secreting things to the surface like sweat