American Academy of Professional Coders (AAPC) Practice Exam

How is areolar tissue described?

1. Dense connective tissue

2. Loose connective tissue

3. Elastic connective tissue

4. Reticular connective tissue

The correct answer is: Loose connective tissue

Areolar tissue is best described as loose connective tissue, characterized by its widespread distribution throughout the body and its role in holding organs and tissues together. This type of tissue contains a loose arrangement of collagen and elastin fibers, along with various types of cells and a significant amount of ground substance, which allows it to be flexible and resilient. It provides support and nourishes other tissues while allowing for movement and a variety of functions, such as the storage of water and salts. In contrast to dense connective tissue, which is tightly packed and provides strength and resistance to stretching, loose connective tissue allows for more movement and flexibility. Elastic connective tissue is known for its high elasticity and is typically found in structures that need to stretch, such as the lungs and arterial walls. Reticular connective tissue comprises a network of reticular fibers and cells and primarily supports the framework of organs like the liver and spleen. Thus, the classification of areolar tissue as loose connective tissue highlights its unique properties and functions within the body.