Final answer:
The hypodermis is not part of the cutaneous membrane, which consists of the epidermis, the papillary layer, and the reticular layer of the dermis.
Step-by-step explanation:
The cutaneous membrane, also known as the skin, is composed of various layers. The question pertains to which of the following is NOT part of the cutaneous membrane. The cutaneous membrane primarily consists of the epidermis and the dermis. The dermis further includes the upper papillary layer and the lower reticular layer. However, the hypodermis lies below the dermis and is not considered a part of the cutaneous membrane. The hypodermis functions mainly for fat storage and providing insulation and cushioning for the body.
To address the question given, out of the options A. reticular layer, B. hypodermis, C. epidermis, and D. papillary layer, the answer is B. hypodermis. The reticular and papillary layers are both part of the dermis, whereas the epidermis is the outermost layer of the skin.