Osteoprogenitor cells can become osteoblasts. Bone matrix consists of collagen and minerals. Neurons and neuroglia constitute nervous tissue. A neuron has a cell body, an axon, and dendrites and functions in communication. Neuroglia support neurons.
Muscle tissue provides movement when filaments of actin and myosin slide past one another.
Contractile cells include skeletal, cardiac, and smooth muscle cells and myoepithelial cells. The integument in many animals consists of an epidermis over a dermis, plus specialized structures, such as hairs, feathers, claws, and glands. In humans a basement membrane joins the epidermis to the dermis, and a subcutaneous layer underlies the dermis. Transplants, cell implants, and tissue engineering replace damaged tissue. An autograft transfers tissue within an individual.