Accessory bone

Accessory bone is a term used in anatomy to describe extra bones that are not normally part of the standard skeletal system. These bones can be found in various parts of the body, but are most commonly found in the foot and hand. The etymology of the term "accessory bone" is derived from the Latin word "accessorius" which means additional.

Foot

In the foot, accessory bones are often found in the ankle and heel. These bones can sometimes cause discomfort or pain, especially if they become inflamed or injured. Some of the most common accessory bones in the foot include the os trigonum, os peroneum, and os naviculare.

Os Trigonum

The os trigonum is an accessory bone located at the back of the ankle. It is present in about 10% of the population and can sometimes cause pain, especially in athletes or individuals who put a lot of strain on their ankles.

Os Peroneum

The os peroneum is an accessory bone located on the outside of the foot, near the cuboid bone. It is present in about 26% of the population and can sometimes cause pain, especially in individuals who put a lot of strain on the outside of their foot.

Os Naviculare

The os naviculare is an accessory bone located on the inside of the foot, near the navicular bone. It is present in about 14% of the population and can sometimes cause pain, especially in individuals who put a lot of strain on the inside of their foot.

Related Terms

• Accessory muscle
• Accessory nerve
• Accessory organ
• Accessory pancreatic duct
• Accessory spleen

See Also

• Bone
• Skeletal system
• Anatomy

Accessory bone Resources
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