skin as epithelium

Question 1

epithelium of secretory part and ducts of sweat glands?

Answer 1

the secretory part is lined by simple cuboidal . ducts are lined by stratified/2 layers of cuboidal epithelium

Question 2

where is Merkel cells found?

Answer 2

basement membrane level . extra: cant be seen by H&E ,only Keratin 20

Question 3

function basal layer of keratinocytes?

Answer 3

site of mitosis

Question 4

spinous/prickle layer of keratinocytes?

Answer 4

gives the epidermis its structure . extra: its no-mitotic

Question 5

function granular layer of keratinocytes?

Answer 5

keratin formation + water barrier

Question 6

function of horny/keratinous layer of keratinocytes?

Answer 6

protection

Question 7

where is langerhans located?

Answer 7

upper-middle layer of epidermes

Question 8

whats pemphigus disease?

Answer 8

diesease that affects desmosomes only: Abs against desmogleins Ag-Ab complex

Question 9

diff between mucosa and skin?

Answer 9

both are stratified squamous epithelium

mucosa: NON-KERATINIZING stratified squamous epithelium

-no granular layer unless traumatized

-keratinocytes appear pale due to abundancy of glycogen

Question 10

function of subcutaneoeus tissue?

Answer 10

insulation and energy storage

Question 11

epithelium of sebaceous gland?

Answer 11

stratified cuboidal cells