Flexor Digitorum Brevis Muscle

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A muscle in the foot that allows flexion of the four lateral toes and supports the medial and lateral longitudinal arches. It originates on the medial process of the posterior calcaneal tuberosity and inserts as tendons into the borders of the middle phalanx of the four lateral toes. It is innervated by the medial plantar nerve and supplied by the medial and lateral plantar arteries.

**Synonyms:** - FLEXOR DIGITORUM BREVIS MUSCLE