NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which is the bottom layer of the epidermis?

A	Stratum basale
B	Stratum lucidum
C	Stratum spinosum
D	Stratum corneum
E	Stratum granulosum

Explanation:

Detailed explanation-1: -Stratum basale, also known as stratum germinativum, is the deepest layer, separated from the dermis by the basement membrane (basal lamina) and attached to the basement membrane by hemidesmosomes.

Detailed explanation-2: -The innermost basal layer, stratum basale (SB), consists in undifferentiated keratinocytes, stem cells, melanocytes, and Merkel cells. On top of this layer resides the spinous layer, stratum spinosum (SS). The subsequent granular layer, stratum granulosum (SG), consists of 3–5 cell layers.

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