NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

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

What is the layer of the epidermis where cell division occurs?

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

Explanation:

Detailed explanation-1: -Cell division occurs in stratum basale/germinativum.

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.

Detailed explanation-3: -The two primary functions of the stratum basale are 1) proliferation and 2) attachment of the epidermis to the dermis. Cells of the stratum basale essentially represent germinal cells (“brick generators”) responsible for the generation of all cells of the epidermis.

There is 1 question to complete.