Question

As a student in an esthetic program, Hannah is tasked with building a three-dimensional model of the layers of the skin. Her model must include captions describing each skin layer and connect skin histology and physiology to esthetics. Hannah visits a craft store to purchase supplies from which she will construct her model.

In her model, Hannah uses the thickest fabric to represent the thickest layer of the epidermis, the stratum _____.

a) Basale
b) Spinosum
c) Granulosum
d) Corneum

Answer 1

The thickest layer of the epidermis is the stratum corneum. In thick skin, there are five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. The stratum corneum consists of dead, tightly packed keratinocytes and forms a tough, waterproof barrier.

Step-by-step explanation:

The thickest layer of the epidermis is the stratum corneum. The epidermis is the outermost layer of the skin and is composed of several layers. In thick skin, which is found on the palms of the hands and soles of the feet, there are five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. The stratum corneum is the topmost layer of the epidermis and consists of dead, tightly packed keratinocytes. It forms a tough, waterproof barrier for the rest of the epidermis.