1. Epithelial tissue: This tissue forms linings and coverings for body surfaces, cavities, and organs. It's involved in protection, secretion, absorption, excretion, filtration, and diffusion.
2. Connective tissue: This tissue provides support, protection, and insulation for organs and the body as a whole. It includes a variety of cell types embedded in an extracellular matrix, such as bone, cartilage, blood, and adipose tissue.
3. Muscle tissue: This tissue is responsible for movement. It's made up of cells that can contract and relax, allowing for voluntary and involuntary movements. There are three main types of muscle tissue: skeletal, smooth, and cardiac.
4. Nervous tissue: This tissue is responsible for communication and coordination within the body. It consists of specialized cells called neurons that transmit electrical signals, and supporting cells called glial cells.
