exocrine glands Flashcards Preview

cell bio test 3 > exocrine glands > Flashcards

Flashcards in exocrine glands Deck (42):
1

what are the two catagories of glands

exocrine and endocrin

2

what type of tissue are exocrina nd endocrine glands derived from

epithithelial tissue

3

what do endocrine cells secrete

hormones

4

how do exocrine glands convey their secretions

through epithelial lined ducts

5

what can happened to the secretions of exocrine glands as it travels thorugh the ducts

it can become modified

6

what do adenomas and adenocarcinomas develop from

glands

7

what are the classification of exocrine glands

type of secretion, mode of secretion and cell numbers.

8

what are the types of secretion

seous mucus mixed or sebaceous

9

whar are the modes of secretion

merocrine apocrin and holocrin

10

what are the cell numbers

unicellular or multicellular

11

where is the nucleus of mucas cells

near the basal domain

12

whata are some examples of mucus cells

goblet cells mucous cells of the stomach clear staining

13

what do mucos cells secrete

mucinogens lare glycosoalted protiens PAS Positive when hydrated form a protective layer called mucin

14

what do serous glands secrete

watery secetions enriched with exymes

15

what are some examples of serous glands

parotid and exocrine pancreas acidophilic cells

16

what are some exmaples of mixed glands

submadibular and sublingual glands

17

what do mixed glands secrete

mixture of mucus and serous fluids very clear staining but nucleaus is in the center of the cell.

18

what do sabaceous glands secrete

a waxy oily substance called sebum ance vulgaris

19

what is the diffence between a sabvacous cell and and a mucus cells slide

mucus and sabacous are bot clear in the staining but mucus has nucleus near basal lamina and sabacous is dead center.

20

what happends to sabacous cells at puberty

before then they can be inactive but after puberty they are activated by hormones and we get acne vulgaris inflamatory response and collagen response causing scaring and gaint cells

21

what happends during holocrine secretion

an entire cells is shed with its secretory products this happends in sabacouse cells

22

what happends during apocrine secretion

secretory product is released along with apical plasmalemma this happends in mammary glands

23

what happends during merocrine secretion

secretion via exocytosis no loss of plasmalemma or cytoplasm most common mode

24

what mode do apocrin sweet glands utilize?

merocrin

25

name an example or an unicellular type of exocrine cell

goblet cells mucous cells of the stomach clear staining

26

what can multicellular cells form

sheets or they can form a duct and glands in various forms

27

what is the differnce between ad simple vs compound multicellular gland

simple have a single duct wherease multicellualr are branched

28

what is the diffence between a tubular and a acinus (alveolus) secretory unit

tubular are tube shaped and acinar or alveolar are grap shaped

29

what are the types of simple ducts

simple tubular simple coiled tubular, simple tubular branched, simple acinar or aveolar.

30

what surrounds a large multicellular gland

a collagenous capsule divided into lobes and then further dividing it into lobules.

31

name some examples of compound glands

orla cavity, exocrine pancrease, and mamary glands.

32

where are interculated ducts located and what lines them

inside of the lobule they are lined with simple cubodial epithelium

33

what do interculated ducts drain into

interlobular ducts

34

where are interlobular ducts located

inside of the connective tissue.

35

what are intralobular ducts lined with

cubodial to columnar epithelium

36

what is the diffence between striated and interlobular ducts

straited are rich in mitochondria and apical domain or the nucleus and more stained and are active in ion transport.

37

where are intralobular ducts located.

in the lobule

38

what are interlobular ducts lined with

psudostratified columnar epithelium

39

what do myoepitheliual cells do (basket cells)

they contract to help squeeze the secretory product out.

40

what is sjogen syndrom

auto immune attacks salivery and lacrimal glands invaded by t cell enlarged usually women between 50 and 60

41

what type of cell is located only in the pancrease

centroacinar cells

42

do you have straited cells in the pancrease

no