What are the four main types of tissues found in the human body?

The four main types of tissues found in the human body are epithelial, connective, muscular, and nervous tissues.

Epithelial tissue serves several crucial functions, including protection, absorption, secretion, and sensation. It forms the lining of body surfaces and cavities and is involved in processes like nutrient absorption in the intestines and secretion of hormones by glands.

Connective tissue supports, binds together, and protects tissues and organs of the body. This type includes a variety of tissues, such as bone, adipose (fat) tissue, blood, and cartilage, which all serve different purposes, such as providing structural support and facilitating nutrient and waste transport.

Muscular tissue is responsible for the movement of the body and includes three types: skeletal (voluntary movement), cardiac (involuntary movement of the heart), and smooth (involuntary movements in organs). This tissue enables motion and the movement of substances within the body.

Nervous tissue makes up the brain, spinal cord, and nerves, and is essential for transmitting impulses throughout the body, coordinating actions, and processing sensory information.

The other options presented do not accurately encompass the four primary tissue types. For instance, the one that includes cardiac, smooth, and skeletal muscle focuses only on muscular tissue