Question

Match each sublayer of the epidermis with its description:

a)Stratum Basale
b)Stratum Spinosum
c)Stratum Granulosum
d)Stratum Lucidum
e)Stratum Corneum
A. This sublayer is responsible for the continuous renewal of epidermal cells and contains actively dividing cells.

B. Keratinization begins in this sublayer, and cells undergo changes in shape and structure.

C. Present only in thick skin, this translucent sublayer is composed of flattened, densely packed cells.

D. This sublayer consists of several layers of flattened cells containing granules, contributing to the waterproofing of the skin.

E. Composed of dead, flattened cells filled with keratin, this outermost sublayer provides a protective barrier for the skin.

Answer 1

The layers of the epidermis are the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. Each sublayer has distinct characteristics and functions.

Step-by-step explanation:

The layers of the epidermis are as follows:

1. Stratum Basale: This sublayer is responsible for the continuous renewal of epidermal cells and contains actively dividing cells.
2. Stratum Spinosum: Keratinization begins in this sublayer, and cells undergo changes in shape and structure. It also contains the immunologically active Langerhans cells.
3. Stratum Granulosum: This sublayer consists of several layers of flattened cells containing granules, contributing to the waterproofing of the skin. Lipids are released in this layer to form a lipid barrier.
4. Stratum Lucidum: Present only in thick skin, this translucent sublayer is composed of flattened, densely packed cells.
5. Stratum Corneum: Composed of dead, flattened cells filled with keratin, this outermost sublayer provides a protective barrier for the skin.