GENERAL HISTOLOGY

INTEGUMENTERY SYSTEM

DERMIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What layer of epidermis does cell division occur?
A
stratum lucidum
B
stratum basale
C
stratum granulosum
D
stratum corneum
Explanation: 

Detailed explanation-1: -Cell division occurs in stratum basale/germinativum. One cell remains, another cell is pushed toward the surface.

Detailed explanation-2: -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-3: -Stratum Basale This layer is one of the most important layers of our skin. This is because it contains the only cells of the epidermis that can divide via the process of mitosis, which means that skin cells germinate here, hence the word germinativum.

Detailed explanation-4: -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.