Uv Light And Your Skin Melanin Flashcards
Melanocytes in the
Stratum bassale produce melanin
You could see melatonin
In the skin ,hair, eyes,and brain
Melanin can come in forms of
Blacks,browns and reds
Each melanocytes
Can deliver melanin to many keratinocytes , mostly in the stratum spinosum
The keratinocytes phagocytoses the melanin
And position it over the nucleus
Melanin protects the dna
Of keratinocytes from mutation by uv radiation
Ultraviolet lights stimulate melanocytes
To produce extra melanin resulting in a tan
Melanin can break down as it rises to the
Too layers example corneum
Abnormal skin colour jaundice
Yellow of cornea
And of skin
Indicate liver dysfunction
Abnormal skin colour cyonosis
Bluish fingers and lips
Indicates low oxygen in blood
Erethyum is another abdormal skin colour
Red due to vasilation
Often indicates inflammation or infection
Abnormal skin colour
Pallour pale skin
Amenia or pour blood supply