Final answer:
Connective tissue proper includes loose connective tissue and dense connective tissue. Dense connective tissue can be regular or irregular depending on the arrangement of fibers.
Step-by-step explanation:
The connective tissue proper is a category of connective tissue that includes loose connective tissue and dense connective tissue. Loose connective tissue proper includes adipose tissue, areolar tissue, and reticular tissue. Dense connective tissue proper can be further classified as either regular or irregular, depending on the arrangement of fibers. Regular dense connective tissue, such as tendons and ligaments, has fibers oriented in parallel, while irregular dense connective tissue, such as the walls of arteries, has fibers oriented in multiple directions.