TERMINOLOGY OF BONY FEATURES
TERMS USED TO DESCRIBE BONY FEATURES Depression and Opening 1. Foramen : A hole, which provides passage to blood vessels and nerves. For example, foramina in the transverse process of cervical vertebrae. 2. Fossa : A hollow depression. For example, glenoid fossa of the scapula. 3. Groove : A ditch-like groove containing a tendon or blood vessel. For example, the bicipital groove of the humerus. 4. Meatus : A canal or tube-like opening in a bone. For example, external auditory meatus. 5. Sinus : An air filled cavity within a bone. For example, paranasal air sinuses (i.e. cavities in the paranasal bones filled with air). 6. Facet : A smooth, flat or shallow area. For example, articular facets of ribs. Projections or Processes 1. Condyle : Rounded knuckle-like projection, for example, condyles of the femur. 2. Eminence : Projecting a prominent part of a bone, for example, the intercondylar eminence of the tibia. 3. Head : Rounded articular projection beyond a narrow neck-lik...