Epithelium

Question 1

Epithelium function

Answer 1

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

Question 2

Cancer of epithelial tissues

Answer 2

carcinomas

Question 3

Basement membrane consists of

Answer 3

basal lamina and reticular lamina

Question 4

Functions of basal lamina

Answer 4

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

Question 5

What type of collagen is in basal lamina

Answer 5

Type IV Collagen

Question 6

What type of collagen is in reticular lamina

Answer 6

Type III Collagen

Question 7

Simple Squamous Epithelium

Answer 7

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

Question 8

Endothelium

Answer 8

lining of vascular system

Question 9

Mesothelium

Answer 9

lining of body cavities

Question 10

Stratified Squamous

Answer 10

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

Question 11

Simple Cuboidal

Answer 11

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

Question 12

Simple Columnar

Answer 12

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

Question 13

Pseudostratified Columnar Epithelium

Answer 13

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

Question 14

Stratified Cuboidal

Answer 14

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

Question 15

Largest exocrine gland ducts (salivary)

Answer 15

Stratified Columnar

Question 16

Transitional Epithelium found in

Answer 16

Renal calyces/bladder/urethra/ureter

Question 17

Exocrine glands

Answer 17

secrete products onto surface via ducts

Question 18

Endocrine glands

Answer 18

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

Question 19

Glands originate from an

Answer 19

epithelium and penetrates the connective tissue and form secretory units

Question 20

Unicellular glands

Answer 20

composed of a single cell

Question 21

Multicellular glands

Answer 21

composed of more than 1 cell

Question 22

How are multicellular glands classified

Answer 22

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

Question 23

Name 3 types of gland secretions

Answer 23

Mucus, serous, mixed

Question 24

Mucus

Answer 24

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

Question 25

Serous secretions

Answer 25

watery secretions often rich in enzymes

Question 26

Mixed secretions

Answer 26

contain both mucus and serous substances.

Question 27

Only _________ glands can have mixed secretions

Answer 27

multicellular

Question 28

Merocrine

Answer 28

cells release their contents by exocytosis

Question 29

Apocrine

Answer 29

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

Question 30

Holocrine

Answer 30

entire secretory cell and contents