epithelial tissue

Question 1

groups of cells similar in structure that perform a common or related function

Answer 1

tissues

Question 2

study of tissues

Answer 2

histology

Question 2

epithelium occurs in the body as ____?

Answer 2

glandular or lining epithelium

Question 3

types of tissues

Answer 3

epithelial
connective
muscle
nervous

Question 3

functions of epithelial tissue

Answer 3

protection
absorption
filtration
excretion
secretion
sensory reception

Question 4

job of connective tissue

Answer 4

reinforces the sheet, resists stretching and tearing, and defines the boundary

Question 5

polarity

Answer 5

tissue has:
free side - not attached to surrounding tissues, open to external or cavity
basal surface - attached to the underlying connective tissue

Question 6

innervated

Answer 6

has nerves

Question 6

avascular

Answer 6

does not have blood vessels

Question 7

special characteristics of epithelial tissue

Answer 7

polarity
avascular
innervated
high REGENERATION capacity

Question 8

two parts of the name

Answer 8

1st - indicates the number of layers
2nd - describes the shape of cells

Question 8

simple = ?

Answer 8

ONE layer

Question 9

stratified = ?

Answer 9

two or more layers

Question 10

cell shapes

Answer 10

squamous (flat/squished)
cuboidal (box-like/cube)
columnar (column shaped)

Question 11

how does epithelial tissue receive nutrients

Answer 11

diffusion, from underlying connective tissues

Question 12

functions of simple epithelium

Answer 12

absorption, secretion, and filtration

Question 13

laterally flattened cells with cytoplasm, and are located where filtration or exchange of substances occurs
location: kidney and lungs

Answer 13

simple squamous

Question 14

cells that are equally tall and wide
location: glands and kidney tubules

Answer 14

simple cuboidal

Question 15

contains cells of various heights that all sit on the basement membrane, giving the appearance of many layers
function: secretion and absorption
location: upper respiratory tract and trachea
has cilia

Answer 15

pseudostratified columnar

Question 16

tall, closely packed cells
location: lines the digestive tract
has GOBLET cells, looks like bubbles
has microvilli

Answer 16

simple columnar

Question 17

why do we have cilia and goblet cells in our throat?

Answer 17

to expel materials like debris, inhaled particles, and pathogens, that shouldn’t be there (cough)
goblet cells produce protective mucus layer

Question 18

makes up external part of the skin, and extends into every body opening

Answer 18

stratified squamous

Question 18

found mostly in the ducts of some of the larger glands

Answer 18

stratified cuboidal

Question 18

found in the pharynx, in the male urethra, and lining some glandular ducts

Answer 18

stratified columnar

Question 19

forms the lining of the hollow organs (bladder, uterus, urethra) of the urinary system function: allows cells to stretch as the organ distends cells flatten and stretch so it can look both cuboidal and squamous

Answer 19

transitional epithelium

Question 20

nuclei

Answer 20

dark purple spots in cells

Question 20

nuclei lined up = ? (columnar)

Answer 20

simple

Question 21

nuclei mixed up = ? (columnar)

Answer 21

pseudostratified

Question 22

The edge of epithelia that is open to the outside or the cavity is known as this

Answer 22

apical