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Table 7.4 Skeletal
Terms used to describe skeletal structures.
| Question | Answer |
|---|---|
| Condyle | Rounded process that usually articulates with another bone. Ex: Occipital condyle of the occipital bone. |
| Crest | Narrow, ridgelike projection. Ex: Iliac crest of the ilium. |
| Epicondyle | Projection situated above a condyle. Ex: Medial epicondyle of the humerus. |
| Facet | Small, nearly flat surface. Ex: Facet of a thoracic vertebra. |
| Fissure | Cleft or groove. Ex: Inferior orbital fissure in the orbit of the eye. |
| Fontanel | Soft spot in the skull where membrane covers the space between bones. Ex: Anterior fontanel between the frontal and parietal bones. |
| Foramen | Opening through a bone that usually serves as a passageway for blood bessels, nerves, or ligaments. Ex:Foramen magnum of the occipital bone. |
| Fossa | Relatively deep pit or depression. Ex: Olecranon fossa of the humerus. |
| Fovea | Tiny pit or depression. Ex:Linea aspera of the femur. |
| Head | Enlargement on the end of a bone. Ex: head of the humerus. |
| Linea | Narrow ridge. Linea aspera of the femur. |
| Meatus | Tubelike passageway with a bone. Ex: External acoustic meatus of the temporal bone. |
| Process | Prominent projection on a bone. Ex: Mastoid process of the temporal bone. |
| Ramus | Branch or similar extension. Ex: Ramus of the mandible. |
| Sinus | Cavity within a bone. Ex: Frontal sinus of the frontal bone. |
| Spine | Thornlike projection Ex: Spine of the scapula. |
| Suture | Interlocking line of union between bones. Ex: Lambdoid suture between the occipital and parietal bones. |
| Trochanter | Relatively large process. Ex: Greater Trochanter of the femur. |
| Tuburcle | Small, knoblike process. Ex: Tubucle of a rib. |
| Tuberosity | Knoblike process usually larger than a tubercle. Ex: Radial Tuberosity of the radius. |