lab 1 epithelium packet

Question 1

what are the four basic tissue types found in the body?

Answer 1

epithelial, connective, muscular and nervous

Question 2

what are the characteristics of pseudostratified columnar? (simple epithelia)

Answer 2

not all cells reach the free surface, shorter cells are covered over by taller ones, looks stratified, every cell reaches basement membrane

Question 3

what is the purpose of simple squamous epithelia?

Answer 3

permits rapid diffusion or transport of substances
secretes serous fluids

Question 4

which ephithelium has nuclei at several layers with cilia and goblet cells, secretes and propels mucus?

Answer 4

pseudostratified epithelium

Question 5

which epithelia attaches to the basement membrane?

Answer 5

deepest layer of stratified epithelia

Question 6

what is the formation of simple cuboidal epithelium? and the purpose? where is it found? LTMSGBKT

Answer 6

simple layer of square or round cells
absorbs and secretes, mucus production and movement
liver, thyroid, mammary, salivary glands, bronchioles, and kidney tubules

Question 7

what is purpose of simple columnar epithelium? what are the cells like?

Answer 7

• oval nuclei in basal half of cell
• absorbs and secretes mucus
• brush border of microvilli in some organs, may possess goblet cells

Question 8

where can i find epithelial tissue in the body? and the function?

Answer 8

1. covers surface
2. lining cavities
3. lining tube like structure esophagus, tubes, stomach
   EX. blood vessels, veins/arteries, intestines, skin, GLAND, esophagus, fallopian tube, atrium, stomach

Question 9

what is one layer of epithelium cells called?

Answer 9

SIMPLE

Question 10

what is more than one layer of epithelium cells called?

Answer 10

stratified

Question 11

what does pseudo mean?

Answer 11

fake or false

Question 12

does the psuedostratified reach free surface? and are shorter cells covered over by taller ones? does it look stratified? does every cell reach basement membrane?

Answer 12

NO
YES
YES
YES

Question 13

what is transitional epithelium?

Answer 13

it’s very stretchy

Question 14

why do we need multiple layers of the stratified cells

Answer 14

need more production or more protection/function

Question 15

where is there multiple layers of stratified squamous ?

Answer 15

esophagus, vagina

Question 16

what is the function of epithelium?

Answer 16

absorbs, secretes, transports, protects

Question 17

main job of columnar epithelium ?

Answer 17

absorbtion

Question 18

main job of cuboidal epithelium?

Answer 18

secrete

Question 19

main job of the squamous epithelium?

Answer 19

transport

Question 20

what is the bronchioles?

Answer 20

mucus

Question 21

where can i find simple columnar epithelium? (think of villi during endoscopy)

Answer 21

kidneys, GI system, uterus & uterine

Question 22

where is the nucleus in the columnar epithelium?

Answer 22

bottom half of cell

Question 23

define pseudostratified epithelium and where is it found?

Answer 23

looks like stratified but it is not, where some cells reach the B.M. but not all of them
has cilia
male urethra and respiratory tract

Question 24

what does keratinized stratified squamous mean?

Answer 24

a layer of dead cells

Question 25

what is the sole of the foot?

Answer 25

stratified squamous and it is keratinized ; 1 layer of dead cell

Question 26

what is keratinized stratified squamous ? (sole of foot)

Answer 26

it is 1 layer of dead cells and it is for protection and resistance to abrasion most exposed to surface

Question 27

what is the vagina classified as?

Answer 27

nonkeratinized if it had dead cells , the woman would have no feelings during sexual intercourse

Question 28

what is esophagus classified under? keratinized or nonkeratinized?

Answer 28

nonkeratinized ; it has sensations as we eat it pushes up to get food down

Question 29

keratinized and nonkeratinized can only be found in the ….?

Answer 29

stratified squamous

Question 30

what is stratified cuboidal epithelium?

Answer 30

2+ cell layers secretes sweat sperm and ovaries

Question 31

what is transitional epithelium?

Answer 31

it is unique and multilayered it is flat easy to stretch , found in ureter and bladder

Question 32

where else can i find simple squamous epithelium?

Answer 32

bowman’s capsule in kidney and lining of heart, vessels and lung

Question 33

where can i find simple cuboidal cells?

Answer 33

kidney rubles and secretory portion of the gland

Question 34

where else can i find simple columnar epithelium?

Answer 34

digestive from stomach to anus, duodenum and lung airways

Question 35

where can i find pseudostratified columnar epithelium?

Answer 35

respiratory tract and some parts of the male urethra

Question 36

where can i find stratified squamous epithelium?

Answer 36

epidermis , oral mucousa, vagina and esophagus

Question 37

where can i find stratified cuboidal epithelium?

Answer 37

ducts of gland

Question 38

where can i find stratified columnar epithelium?

Answer 38

urethra

Question 39

where can i find transitional epithelium?

Answer 39

ureter and bladder

Question 40

does endorcrine gland has to reach blood? is it a special kind of epithelial tissue? where can i find it in the glands? give an example

Answer 40

yes kidney, pituitary, adrenal secretes ex. pancreas produces insulin

Question 41

where can i find exocrine glands? (think what comes OUT EXO = OUT)

Answer 41

mucus, sweat, oil, earwax, digestive enzymes

Question 42

what is merocrine secretion? where can i find it?

Answer 42

secretes by exocytosis salivary glands, tear glands, pancreas, gastric glands

Question 43

what is apocrine gland?

Answer 43

part of gland is pinched off found in axillary, sweat and mammary gland

Question 44

what is the holocrine secretion?

Answer 44

rupture of plasma membrane releases the entire cell contents into lumen and kills cell ex sebaceous gland

Question 45

two categories of the exocrine glands

Answer 45

unbranched duct (simple) branched duct (compound)

Question 46

tubular glands?

Answer 46

like a tube

Question 47

acinar glands?

Answer 47

dilated sac

Question 48

what is tubulesacinar?

Answer 48

glands have features of both tubular and acinar glands