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It is blended anteriorly with the plantar (glenoid) ligaments of the metatarsophalangeal articulations. Its plantar surface is concave where the Flexor tendons run below it. Above it, the tendons of the Interossei pass to their insertions. Its homologue in the hand is the transverse metacarpal ligament, which connects the metacarpals to each other.
Plantar: Lateral plantar artery and plantar arch, plantar metatarsal and plantar digital arteries. Nerve: Lateral plantar nerve: Actions: Dorsal: Abducts 2nd through 4th toes, flex metatarsophalangeal joints, and extend phalanges. Plantar: Adduct digits (2-4) and flex metatarsophalangeal joint and extend phalanges. Anatomical terms of muscle
Since the intersseous muscles cross on the metatarsophalangeal joint, then they act on that specific joint and cause adduction of toes III, IV, and V. [1] Adduction itself is not of extreme importance to the toes, but these muscles work together with the dorsal interosseous muscles in flexion of the foot.
This arrangement of dorsal interossei makes the second toe the midline of the foot, whereas the midline of the hand (marked by dorsal interossei of hand) is in the third finger. [2] Abduction is of little importance in the foot, but, together with the plantar interossei, the dorsal interossei also produce flexion at the metatarsophalangeal joints.
The second dorsal interossei from the medial side of the bone and the third dorsal interossei from the lateral side. The function of the muscle is to spread the toes. [2] The first Plantar interossei muscle originates from the medial side of the base and shaft of the third metatarsal. The function of the muscle is to move the third toe medially ...
Plantar fasciitis or plantar heel pain is a disorder of the plantar fascia, which is the connective tissue that supports the arch of the foot. [2] It results in pain in the heel and bottom of the foot that is usually most severe with the first steps of the day or following a period of rest.
The flexor digitorum brevis or flexor digitorum communis brevis [1] is a muscle which lies in the middle of the sole of the foot, immediately above the central part of the plantar aponeurosis, with which it is firmly united. Its deep surface is separated from the lateral plantar vessels and nerves by a thin layer of fascia.
The fibularis longus also tilts the sole of the foot away from the midline of the body . Because of the angle at which it crosses the sole of the foot, it plays an important role in maintaining the transverse arch of the foot. [2] Together, the fibularis muscles help to steady the leg upon the foot, especially in standing on one leg. [2]