Tissues in the human body serve different functions through their structures. Epithelial, muscle, nervous, and connective tissues play crucial roles in maintaining the body's integrity and functions.
Tissues are groups of cells with similar structure and function. The four basic types of human tissues are: epithelial, muscle, nervous, and connective tissues.
Epithelial tissue provides protective coverings and secretes substances. Muscle tissue enables movement, both voluntary and involuntary. Nervous tissue carries electrical and chemical signals within the body. Connective tissue supports and holds body tissues together.