Other types of raised skin bumps can be caused by skin cancer. There are several types of skin cancer, all requiring medical management and treatment: Actinic keratosis is a precancerous skin condition characterized by scaly, crusty spots on areas of sun-exposed skin, such as hands, arms, or face.
osteocyte[osâ²tÄ-Å-sÄ«tâ²] Type:Term. Definitions. 1. A cell of osseous tissue that occupies a lacuna and has cytoplasmic processes that extend into canaliculi and make contact by means of gap junctions with the processes of other osteocytes.
Written By: Osteocyte, a cell that lies within the substance of fully formed bone. It occupies a small chamber called a lacuna, which is contained in the calcified matrix of bone. Osteocytes derive from osteoblasts, or bone-forming cells, and are essentially osteoblasts surrounded by the products they secreted.