NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the cell that produces the melanin pigment?
A
Melanocytes
B
Keratin
C
Melanin
D
Keratinocytes
Explanation: 

Detailed explanation-1: -A cell in the skin and eyes that produces and contains the pigment called melanin.

Detailed explanation-2: -Through a process called melanogenesis, melanocytes produce melanin, which is a pigment found in the skin, eyes, hair, nasal cavity, and inner ear. This melanogenesis leads to a long-lasting pigmentation, which is in contrast to the pigmentation that originates from oxidation of already-existing melanin.

Detailed explanation-3: -The melanocyte lineage is derived from the neural crest, which has its origins in the neural tube. Following its formation, neural crest cells delaminate from the dorsal-most aspect of the neural tube by a process of epithelial-to-mesenchymal transition.

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