HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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keratin, melanin, melatonin
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hemoglobin, melanin and carotene
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melanocytes, keratin, blood
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hemoglobin, melanocytes, carotene
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Detailed explanation-1: -Both carotenoid pigments and melanin increase skin yellowness but melanin additionally decreases skin lightness (L∗) whereas carotenoids have little effect on L∗ (Alaluf et al., 2002; Stamatas et al., 2004).
Detailed explanation-2: -Skin Color/Condition Melanocytes, found in the deep basal layer of the epidermis, contain brown granules called melanin. Besides contributing to skin color, melanin provides protection during episodes of sun exposure. Carotene found in subcutaneous fat tissue contributes to the yellowish color of the skin.
Detailed explanation-3: -Hemoglobin is the iron-containing protein pigment of our blood cells. A lack of oxygen saturation imparts a paler, grayer, or bluer color to the skin. Skin may also become paler as a result of anemia (a reduced number of hemoglobin and/or red blood cells), low blood pressure, or poor circulation of blood.