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.
Osteoblasts are bone-forming cells that descend from osteoprogenitor cells. They form a protein mixture known as osteoid, which mineralizes to become bone. Osteoid is primarily composed of Type I collagen.Osteoblasts also manufacture hormones, such as prostaglandins, to act on the bone itself.steocytes: Osteocytes are mature bone cells that originate from osteoblasts, which have migrated into and become trapped and surrounded by bone matrix, produced by themselves. The spaces they occupy are known as lacunae.