In the bird, the fibula is small and its lower end diminishes to a point.
On the outer side note the tendons of the biceps of the leg, running down to the head of the fibula.
The head of the fibula lies at the outer and back part of the tibia.
The least modified mammals, in fact, have the radius and ulna, the tibia and fibula, distinct and separate.
The left fibula has a large, irregular calcification from the posterior surface of the proximal diaphysis consistent with myositis ossificans.
Such fibulae give only a hint as to the normal user.
Lateral from the facet, the anterior side flexes slightly laterally for the flat surface that indicates the distal contact with the fibula.
Stimulation was applied to the common peroneal nerve at the neck of the fibula and in the popliteal fossa.