Which of the following is NOT one of the four types of tissue?

Cartilage is considered a type of connective tissue, not one of the four primary types of tissue. The four main types of tissue in the human body are muscle tissue, nervous tissue, epithelial tissue, and connective tissue. Muscle tissue is responsible for body movement, nervous tissue conducts impulses for communication throughout the body, and epithelial tissue covers and protects surfaces and organs. Cartilage, as a form of connective tissue, serves to support, cushion joints, and facilitate smooth movement between bones, thus reinforcing its classification as a connective rather than a primary tissue type. Understanding the distinctions among these tissue types is essential for fields such as anatomy and physiology, as they play crucial roles in the structure and function of the body.