​There are four types of tissues in animals: connective, muscle, nervous, and epithelial.
Areolar connective tissue is found beneath the dermis layer and is also underneath the epithelial tissue of all the body system that have an external opening.
Muscle tissue is a soft tissue that composes muscle in animal bodies and gives rise to muscle's ability to contract.
Connective tissue is another type of animal tissue found in between other tissues everywhere in the body including the nervous system.
Epithelial tissue forms the covering of all body surfaces, line body cavities and hollow organs.