Interossei refer to muscles between certain bones. There are many interossei in a human body. Specific interossei include:
Flexor digiti minimi brevis muscle (foot)
The Flexor digiti minimi brevis (Flexor brevis minimi digiti, Flexor digiti quinti brevis) lies under the metatarsal bone on the little toe, and resembles one of the Interossei.
Dorsal interossei of the foot
In human anatomy, the dorsal interossei of the foot are four muscles situated between the metatarsal bones.
Flexor hallucis brevis muscle
The Flexor hallucis brevis arises, by a pointed tendinous process, from the medial part of the under surface of the cuboid bone, from the contiguous portion of the third cuneiform, and from the prolongation of the tendon of the Tibialis posterior which is attached to that bone.
Lumbricals of the foot
are four small skeletal muscles
, accessory to the tendons of the flexor digitorum longus and numbered from the medial side of the foot; they arise from these tendons, as far back as their angles of division, each springing from two tendons, except the first.