Skin ~ Histology

Question 1

5 layers of Epidermis

Answer 1

Stratum basale (lower most)
Stratum spinosum 
Stratum granulosum
Stratum lucidum
Stratum corneum

Question 2

Cells in the Stratum basale

Answer 2

Keratinocytes ~ from stem cells
Melanocytes ~ from NCC
Merkel cells ~ from surface ectoderm > NCC

Question 3

Which layer of skin has Keratohyaline Granules ~ secrets keratin filaments

Answer 3

Stratum granulosum

Question 4

Layer of skin present only in thick skin

Answer 4

Stratum lucidum

It loose nuclei ~ appear clear and homogeneous

Question 5

Layers of Dermis

Answer 5

Reticular layer ~ Dense irregular CT

Papillary layer

Question 6

Merkel cells located in

Answer 6

Stratum basale ~ carry light touch

Question 7

Meissener’s corpuscle location and function

Answer 7

Located at Dermo-Epidermal Junction

~ 2 Point Discrimination

Question 8

Name the receptor located at deep dermis and carry pressure/vibration sensation

Answer 8

Pacinian corpuscles

Question 9

Riffini endings function and location

Answer 9

Dermal scratch and located in Deep dermis

Question 10

For Brail reading which receptors are essential

Answer 10

Merkel > Meissner’s corpuscle

Question 11

Slow adapting receptors in skin

Answer 11

Merkel ans Ruffini

Question 12

Rapid adapting receptors in skin

Answer 12

Pacinian and Meissner’s corpuscles

Question 13

Layers of Cornea (Superficial to Deep)

Answer 13

Epithelium (outer layer)
Bowman’s layer
Stroma
Descement’s layer
Endothelium of anterior chamber

Question 14

Epithelium/outer layer of cornea is made up of

Answer 14

Stratified Sqaumous non keratinised epithelium

Question 15

Layer of cornea which forms entire thickness

Answer 15

Stroma / substancia propria