American Academy of Professional Coders (AAPC) Practice Exam

In addition to fat, what other tissue is found in subcutaneous tissue?

1. Cartilage

2. Adenoid tissue

3. Aerolar tissue

4. Bone tissue

The correct answer is: Aerolar tissue

Subcutaneous tissue, also known as hypodermis, primarily consists of fat (adipose tissue) and plays a crucial role in insulating the body, storing energy, and providing cushioning. In addition to adipose tissue, aerolar tissue is found within the subcutaneous layer. Aerolar tissue is a type of loose connective tissue that contains a variety of cell types and an extensive network of fibers, which helps to support and protect other tissues and organs. It serves as a substrate for blood vessels and nerves, making it vital for nutrient and waste exchange and sensation. This combination of fat and aerolar tissue enables the subcutaneous layer to fulfill its functions effectively, providing both structural support and flexibility. Other options, such as cartilage, adenoid tissue, and bone tissue are not typically found in the subcutaneous layer, as they serve different functions in the body and are located in different areas. Cartilage is more prevalent in joint structures, while bone is the hard tissue that forms the skeleton, and adenoid tissue is a type of lymphatic tissue often associated with the immune response rather than the integumentary system where subcutaneous tissue is located.