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Definition
| Flat bones have thin, roughly parallel surfaces. Flat bones form the roof of the skull, the sternum, the ribs, and the scapulae. They provide protection for underlying soft tissue and offer an extensive surface area for the attachment of skeletal muscles. |
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Term
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Definition
| Sutural or Wormian bones are small, flat irregularly shaped bones between the flat bones of the skull. There are individual variations in the number, shape, and position of sutural bones. Their borders are like pieces of a jigsaw puzzle, and they range in size from a grain of sand to a quarter. |
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Term
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Definition
| Long bones are relatively long and slender. They are located in the arm and forearm, thigh and leg, palms, soles, fingers, and toes. The femur, the long bone of the thigh, is the largest and heaviest bone in the body. |
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Definition
| Irregular bones have complex shapes with short, flat, notched, or ridged surfaces. The spinal vertebrae, the bones of the pelvis, and several skull bones are irregular bones. |
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Definition
| Sesamoid bones are generally small, flat, and shaped somewhat like a sesame seed. They develop inside tendons and are most commonly located near joints at the knees, the hands, and the feet. Everyone has sesamoid patellae, or knee caps, but individuals vary in the location and abundance of other sesamoid bones. This variation, among others, accounts for disparities in the total total number of bones in the skeleton. These type of bones may form in at least 26 locations. |
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Term
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Definition
| Short Bones are small and boxy. Examples of short bones include bones in the wrists (carpal bones) and in the ankles (tarsal bones). |
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Term
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Definition
| Canal or Meatus is a large passageway through the substance of a bone. |
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Term
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Definition
| A process is any projection or bump. |
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Definition
| A sinus is a chamber within a bone that is normally filled with air. |
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Definition
| A foramen is a small, rounded passageway through which blood vessels or nerves penetrate the bone. |
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Definition
| A fissure is an elongated cleft or gap. |
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Definition
| The Head is an expanded proximal end of a bone that forms part of a joint. |
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Term
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Definition
| The tubercle is a small rounded projection. |
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Term
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Definition
| The sulcus is a deep, narrow groove. |
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Term
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Definition
| A tuberosity is a small, rough projection that may occupy a broad area of the bone surface. |
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Definition
| The diaphysis or shaft, is the elongated body of a long bone. |
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Term
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Definition
| A trochlea is a smooth, grooved articular process shaped like a pulley. |
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Term
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Definition
| A condyle is a smooth, rounded articular process. |
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Term
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Definition
| Canal or Meatus is a large passageway through the substance of a bone. |
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Term
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Definition
| A process is any projection or bump. |
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Term
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Definition
| A sinus is a chamber within a bone that is normally filled with air. |
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Term
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Definition
| A foramen is a small, rounded passageway through which blood vessels or nerves penetrate the bone. |
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Term
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Definition
| A fissure is an elongated cleft or gap. |
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