epithelial tissues

Question 1

types of tissues

Answer 1

epithelial, connective, skeletal, and nervous,

Question 2

epithelial tissue function

Answer 2

lining tissues that forms the boundary between out body and the external environment. PROTECTION, ABSORPTION, FILTRATION, SECRETION

Question 3

where can epithelial tissue be found?

Answer 3

upper respiratory tract

Question 4

what is the top surface of an epithelial tissue called?

Answer 4

free surface or apical surface

Question 5

what is the bottom surface of an epithelial tissue called?

Answer 5

basal surface

Question 6

what is the membrane underneath the basal surface called?

Answer 6

basement membrane

Question 7

what type of tissues are epithelial tissues? (avascular or vascular)

Answer 7

avascular (no blood vessels)

Question 8

how are epithelial tissues classified?

Answer 8

number of layers and the shape of the cell

Question 9

classifications of epithelial tissues

Answer 9

simple epithelial tissue and striated epithelial tissue
squamous, cuboidal, and columnar

Question 10

describe simple squamous epithelial tissue

Answer 10

single, flat layer of cells that is THIN and PERMEABLE

Question 11

simple squamous epithelial tissue function

Answer 11

rapid diffusion of materials

Question 12

where is simple squamous epithelial tissue found?

Answer 12

in blood vessels and lung tissues

Question 13

describe simple cuboidal epithelial tissue

Answer 13

single layer of cube-shaped cells

Question 14

simple cuboidal epithelial tissue function

Answer 14

secretion and absorption of substances

Question 15

where is simple cuboidal epithelial tissue found?

Answer 15

in tissues of kidneys

Question 16

describe simple columnar epithelial tissue

Answer 16

single layer of tall, closely packed cells. these cells may have cilia and goblet cells, which secrete mucus

Question 17

simple columnar epithelial tissue function

Answer 17

secretion of mucus for protection and absorption of substances

Question 18

where is simple columnar epithelial tissue found?

Answer 18

lining of digestive tract

Question 19

describe stratified squamous epithelium

Answer 19

thick layers of squamous epithelium

Question 20

stratified squamous epithelium function

Answer 20

provide protection for underlying layers

Question 21

where is stratified squamous epithelium found?

Answer 21

in the epidermal layer of the skin

Question 22

describe stratified cuboidal epithelium

Answer 22

more than one layer of cuboidal cells. rare in body

Question 23

where is stratified cuboidal epithelium found?

Answer 23

in salivary and mammary glands

Question 24

describe stratified columnar epithelium

Answer 24

free surface is lined with columnar cells. rare in body

Question 25

where is stratified columnar epithelium found?

Answer 25

in larynx and male urethra

Question 26

describe pseudo-stratified columnar epithelium

Answer 26

cell nuclei are found at different levels, so it appears stratified, though it is not

Question 27

pseudo-stratified columnar epithelium function

Answer 27

secretion and absorption

Question 28

where is pseudo-stratified columnar epithelium found?

Answer 28

in most of the upper respiratory tract

Question 29

describe transitional epithelium

Answer 29

vary in appearance based on stretching of the tissue. "transition": change shape with elasticity

Question 30

where is transitional epithelium found?

Answer 30

in lining of urinary bladder

Question 31

glandular epithelium function

Answer 31

specialized to produce and secrete substances

Question 32

where is glandular epithelium found?

Answer 32

glands...

Question 33

gland

Answer 33

group of cells that secrete a fluid substance

Question 34

two ways to classify glands

Answer 34

complexity and how the substances are secreted (endo/exocrine)

Question 35

exocrine glands

Answer 35

secrete substances outward through a tube-like duct ex: sweat

Question 36

endocrine glands

Answer 36

ductless glands that secrete hormones through the bloodstream so they can travel further distances. packed tightly with capillaries running through the glandular tissue. cells excrete products through exocytosis. ex: thyroid gland, thymus gland, adrenal glands, and pancreas

Question 37

types of exocrine glands

Answer 37

merocrine, apocrine, and holocrine

Question 38

merocrine exocrine glands

Answer 38

cells excrete the products via exocytosis "mero"= part ex: sweat glands

Question 39

apocrine exocrine glands

Answer 39

a portion of the cell pinches off with secreted products "apo"=tip ex: mammary glands

Question 40

holocrine exocrine glands

Answer 40

cells rupture and spill products into the duct "hol"=whole ex: sebaceous glands