What are the four main types of tissue in the human body?

The four main types of tissue in the human body are epithelial, connective, muscle, and nervous tissue.

Epithelial tissue serves as a protective layer covering surfaces of the body and organs, and it also plays a role in absorption, secretion, and sensation. Connective tissue provides support and structure, holds organs in place, and connects different types of tissues. Muscle tissue is responsible for movement and is classified into three types: skeletal, cardiac, and smooth. Nervous tissue is essential for transmitting signals throughout the body, enabling communication between different parts of the nervous system.

The other options do not encompass the complete set of main tissue types. For instance, while muscle tissue is included in all choices, others list specific types or combinations of tissues that do not represent the primary classifications recognized in human anatomy.