An overview ofFractures of the Proximal Fifth Metatarsal is offered by the American Family Physician.

There is a long bone in the foot called the fifth metatarsal.It is the smallest of the five bones.The fifth metatarsal is similar to the fifth metacarpal bone in the hand.

The base, body and head are the same as the four other metatarsal bones.The ankle is closest to the base and head.The body of the bone is referred to as the narrowed part in the middle.The sole of the foot is the only surface on the bone that is flat.The surfaces are rough.The bone is curved longitudinally.

The base articulates behind by a triangular surface cut obliquely with the fourth metatarsal.The tuberosity of the fifth metatarsal is known as the styloid process.The base has grooves for the abductor digiti quinti.

A strong band of the foot connects the tuberosity with the calcaneus.

The fibularis brevis is on the surface of the tuberosity.

The flexor digiti minimi brevis can be traced back to the plantar surface of the base.

The fourth dorsal interosseus muscle is located on the left side of the shaft.The toes are spread by the muscle.10

The base and shaft of the fifth metatarsal are where the third Plantar interosseus muscle comes from.The function of the muscle is to move the fourth toe and the toes together.10

A narrow band which runs across and connects the heads of all the metatarsal bones is the horizontal head of the adductor hallucis.