Histology and Pathology of Skin

Question 1

What are the 5 layers of skin, superficial to deep?

Give features of each

Answer 1

Stratum corneum - cells slough off
Stratum lucidum - lost organelles
Stratum granulosum - keratohyalin granules
Stratum spinosum - demsosomes, shriveled
Stratum basale - high mitotic activity

Question 2

What is the dermis divided into?

Give features of each

Answer 2

Papillary dermis - blood vessels and nerve endings

Reticular dermis - hair follicules and sweat glands

Question 3

Explain the classifcation of burns

Answer 3

1st - corneum
2nd - reticular dermis
3rd - hypodermis

Question 4

In which layer of skin are melanocytes found?

Answer 4

Stratum basale

Question 5

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Answer 5

desmosomes
hemidemsosomes
intermediate filament so cytoskeleton

Question 6

Which immunity cells are found in the skin?

Which layer are they found in?

Answer 6

langerhans cells

stratum spinosum

Question 7

What are the 5 functions of skin?

Answer 7

Protection - UV, physical, waterproof
Sensation
Thermoregulation
Metabolic function
Sexual signalling

Question 8

What are the different glands in the skin?

Answer 8

appocrine - thick, protein rich, axilla
eccrine - watery, less protein, widespread
sebaceous - sebum, hair follicles