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Histology Exam 1 TonyFrim > Epithelium > Flashcards

Flashcards in Epithelium Deck (30):
1

Epithelium function

provide protection(cover surfaces) and also function in secretion and absorption

2

Cancer of epithelial tissues

carcinomas

3

Basement membrane consists of

basal lamina and reticular lamina

4

Functions of basal lamina

1) Attachment 2) Filtration 3) Tissue compartmentalization 4) confers cell polarity and shape

5

What type of collagen is in basal lamina

Type IV Collagen

6

What type of collagen is in reticular lamina

Type III Collagen

7

Simple Squamous Epithelium

Lining of vascular system/Lining of body cavities/ lining of respiratory spaces in lung/Bowman's capsule in kidney

8

Endothelium

lining of vascular system

9

Mesothelium

lining of body cavities

10

Stratified Squamous

Epidermis/lining of oral cavity/esophagus/lining of vagina

11

Simple Cuboidal

Small ducts of exocrine glands/ kidney tubules/ ovary "germinal" epithelium/thickness varies depending on location

12

Simple Columnar

Small intestine and colon lining/gallbladder lining/stomach lining and gastric glands

13

Pseudostratified Columnar Epithelium

Appears to have many layers, but all cells in contact with basal lamina. Found in trachea, bronchi lining/ lining of ductus deferens/ efferent ductules of epididymis

14

Stratified Cuboidal

Sweat gland ducts/ anorectal junction/ large ducts of exocrine glands

15

Largest exocrine gland ducts (salivary)

Stratified Columnar

16

Transitional Epithelium found in

Renal calyces/bladder/urethra/ureter

17

Exocrine glands

secrete products onto surface via ducts

18

Endocrine glands

no ducts. secrete into connective tissue spaces where they are absorbed into bloodstream by capillaries

19

Glands originate from an

epithelium and penetrates the connective tissue and form secretory units

20

Unicellular glands

composed of a single cell

21

Multicellular glands

composed of more than 1 cell

22

How are multicellular glands classified

1)based on duct branching as simple glands or compound glands 2) based on the shape of the secretory unit as acinar, alveolar, or tubular

23

Name 3 types of gland secretions

Mucus, serous, mixed

24

Mucus

viscous material, which protects and lubricates cell surfaces . In H and E stained sections, mucous appear translucent. Dark magenta with PAS stain

25

Serous secretions

watery secretions often rich in enzymes

26

Mixed secretions

contain both mucus and serous substances.

27

Only _________ glands can have mixed secretions

multicellular

28

Merocrine

cells release their contents by exocytosis

29

Apocrine

part of the secretory cell apical cytoplasm is released along with the contents

30

Holocrine

entire secretory cell and contents