GENERAL HISTOLOGY

INTEGUMENTERY SYSTEM

EPIDERMIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Only layer of epidermis capable of undergoing mitosis to replace other layers
A
Stratum Spinosum
B
Stratum Basale
C
Stratum Lucidum
D
Stratum Granulosum
E
Stratum Corneum
Explanation: 

Detailed explanation-1: -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-2: -The layer of epidermis that undergoes mitosis and forms new epidermal cells is the (a) stratum basale. This layer of the epidermis contains stem cells called basal cells which actively divide by mitosis, and differentiate into keratinocytes in order to replenish epidermal cells lost from the outer epidermal layers.

Detailed explanation-3: -The stratum basale is the deepest layer of the epidermis that plays an important role in cell division and replacement. It comprises the basal cells which produce new cells and replaces old cells with new cells.

Detailed explanation-4: -Producing new skin cells. New skin cells develop at the bottom layer of your epidermis (stratum basale) and travel up through the other layers as they get older. They reach the outermost layer of your epidermis after about a month, where the skin cells shed from your body as new cells develop at the bottom layer.

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