Definitions Flashcards
Osteon
A system of interconnecting canals in the microscopic structure of adult compact bones ( unit of bone)
Osteocytes
A mature bone cell
Periosteum
Double layered connective tissue that covers and nourishes the bone
Osteoblasts
Bone forming cells
Osteoclasts
Large cells that reabsorb or breakdown bone matrix
Tubercle
Small, rounded projection or process (ex. Humerus(greater/lesser), adductor(knee)
Tuberosity
Large rounded projection, may be roughened(ex. Tibia or deltoid)
Trochanter
Very large, blunt, irregularly shaped process (ex. Only on the femur)
Crest
Narrow ridge of bone, usually prominent (ex. Iliac crest anterior crest(shin)).
Epicondyle
Raised area on or above a condyle (ex. Above condyle of femur or humerus).
Spine
Sharp, slender, often pointed projection (ex. Spine of scapula, vertebral spine).
Process
Any bony prominence (ex. Spinous process, corocoid process).
Line
Narrow ridge of bone, less prominent than a crest ( ex. In between trochanters).
Head
Bony expansion carried on a narrow neck (ex. On the ends of femur or humerus).
Facet
Smooth, nearly flat articulate surface (ex. Where ribs attach to the vertebra)