Colorado Esthetician Written Practice Exam

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Which layer of the skin is composed of loose connective tissue and 80% fat?

Reticular layer
Subcutaneous layer
Stratum Basal
Stratum Spinosum

The correct answer is: Subcutaneous layer

The subcutaneous layer, also known as the hypodermis, is the deepest layer of the skin and is composed of loose connective tissue and a high percentage of fat. The other options given, the reticular layer, stratum basal, and stratum spinosum, are all part of the dermis layer above the subcutaneous layer. The reticular layer is primarily composed of collagen fibers, while the stratum basal and stratum spinosum are both part of the epidermis layer and do not contain significant amounts of fat. Therefore, the correct answer is the subcutaneous layer (B).