Lecture9: Histology Of Skin And Sensory Nerve Endings

Question 1

Which layer is responsible for renewal of cell layers and a high rate of mitosis?

Answer 1

Stratum Basale

Question 2

Which layer is a single layer of cuboidal or low columnar cells?

Answer 2

Stratum basale

Question 3

Which layer is the thickest?

Answer 3

Stratum spinosum

Question 4

Which layer has its cells interconnected by Desmosomes and contain lamellated granules?

Answer 4

Stratum Spinosum

Question 5

Which layer acts as the water-proof barrier

Answer 5

Stratum Granulosum

Question 6

Which layer is only present in thick skin?

Answer 6

Stratum lucidum

Question 7

Which layer lacks organelles and contains only keratin

Answer 7

Stratum Lucidum

Question 8

Which layer has only flat dead cells that only have keratin?

Answer 8

Stratum corneum

Question 9

Which layer undergoes desquamation?

Answer 9

Stratum Corneum

Question 10

Where are Melanocytes located? (Which layer)

Answer 10

In the Stratum Basale

Question 11

What is the function of melanocytes?

Answer 11

The synthesis of Melanin

Question 12

What is done with the melanin?

Answer 12

Injected into the surrounding keratinocytes

Question 13

Where are the Langerhan cells located?

Answer 13

Between the cells of the stratum spinosum

Question 14

What is the function of Langerhan Cells?

Answer 14

Hypersensitivity and Ag presenting

Question 15

Are Langerhan cells motile?

Answer 15

Yes

Question 16

Which cells are responsible for the sensory receptor to light touch?

Answer 16

Merkel Cells

Question 17

Are Merkel Cells large?

Answer 17

Yes

Question 18

What are Merkel Cells attached to?

Answer 18

Keratinocytes

Question 19

Which type of skin is Stratum Lucidum only present in?

Answer 19

Thick skin

Question 20

Are Meissner Corpuscles responsible for touch sensation?

Answer 20

Yes

Question 21

Are Pacinian Corpuscles responsible for pressure?

Answer 21

Yes