Stick Bones: Fibula

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The fibula is the lateral of the two lower leg bones. It is easily broken when hit from the side in contact sports.

An illustration showing the anterior and posterior views of the right fibula. The fibula bones are light beige with shadows indicating the three-dimensional shape. The anterior view shows the bone's natural curve, while the posterior view appears straighter. Text labels indicate each view.
Right fibula, anterior and posterior view.
  • Head
  • Lateral malleolus

The fibula, like the radius, is the smaller of the bones associated with the lower limb bones.  I don’t know of a nickname for the fibula. However, much like the tibia, you will never refer to this bone as the tibula or fibia.  Please.

An illustration of the fibula, a long bone in the lower leg, isolated against a light gray background. The top end of the bone is labeled "Head"; the bottom end is labeled "Lateral Malleolus". These labels are positioned with black lines.
Fibula bone anatomy, labeled ‘Head’ and ‘Lateral Malleolus’.

The fibula is the lateral bone of the lower limb. It is frequently broken in contact sports where you get hit to the side of your lower body.  This can help you remember that the tibia is medial. The tibia is also known as the shin bone. The fibula is lateral on the lower leg.  

The proximal end of the fibula is called the head.  I encourage you to make a small list of all the bones that have a head on their proximal ends.  Associations like this can be helpful when memorizing.  Unfortunately, the proximal head can look a lot like the distal end, which contains the lateral malleolus (meaning “little hammer”).  The only trick I know for identifying the correct end of this bone is the sharp little points. These points are called the apex.   It is on the head, not on the lateral malleolus.  The lateral malleolus on the fibula looks like a paddle or a very shallow spoon to me.  

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