What type of tissue is collagen?

Collagen is classified as fibrous connective tissue because it is a protein that provides strength and structural support to various tissues and organs in the body. It is produced by fibroblasts and plays a critical role in the connective tissue framework, helping to maintain the integrity and elasticity of skin, tendons, ligaments, and cartilage.

In terms of the function of other types of tissue mentioned, nervous tissue is responsible for transmitting signals throughout the body, muscular tissue enables movement, and epithelial tissue serves as a protective layer covering body surfaces and lining cavities. These tissues do not share the same structural and supportive functions that collagen and fibrous connective tissue provide, which solidifies the understanding of why collagen specifically falls into the category of fibrous connective tissue.