skin color Flashcards
What are the three main layers of skin?
Epidermis, Dermis, and Hypodermis
What are the two main cells found in the Epidermis
Keratinocytes and Melanocytes
What is melanin
Pigment that gives skin color
how does melanin protect cells
melanosomes protect the nucleus
How does sunlight cause tanning
It produces Melanin
What pigments absorbs UV light
Melanin
Pigment cells create caps around nucleus to ___
prevent DNA mutations
UVB is critical for the production of what vitamin
Vitamin D
mutation COL7A1
epidermolysis bullosa
EB effects
skin is fragile and blisters easily, skin can tear when something bumps or rubs
what causes EB
mutation COL7A1 which affects the protein, collagen which holds tissue together and anchors epidermis to the basement membrane
what causes the blisters
when the dermis pulls away from the epidermis
what is collagen tissue
connective tissue
