Musculus abductor digiti minimi pedis

Musculus abductor digiti minimi pedis, also known as the abductor digiti minimi muscle of the foot, is a small muscle located in the foot. In this article, we will provide a detailed overview of this muscle, including its anatomy, function, and clinical significance.

Anatomy

The musculus abductor digiti minimi pedis is situated on the lateral side of the foot. It originates from the calcaneus bone, specifically from the tuberosity of the calcaneus, and extends towards the base of the fifth metatarsal bone. The muscle belly is located in the sole of the foot, and it inserts into the lateral side of the base of the proximal phalanx of the fifth toe.

Function

The main function of the musculus abductor digiti minimi pedis is to abduct the fifth toe. This means that it moves the toe away from the midline of the foot. Additionally, it also assists in flexion and opposition of the fifth toe, allowing for movements such as grasping or picking up objects with the toes.

Clinical Significance

Injuries or dysfunctions of the musculus abductor digiti minimi pedis can lead to various foot conditions. For example, weakness or paralysis of this muscle can result in a condition called "abductor digiti minimi weakness" or "abductor digiti minimi atrophy." This can cause difficulties in walking, balance, and overall foot stability.

See Also

• Muscles of the foot
• Calcaneus
• Metatarsal bones