What is extensor digitorum brevis?

Extensor Digitorum Brevis is a small foot muscles. It is located on the dorsal or upper aspect of the foot and runs longitudinally between the heel and toes. Its fibers also run in this direction, even when they approach their fingers on their feet, turning slightly inward. Digitorum brevis extension is responsible for expanding or straightening of medium -three legs. From there it extends over the upper surface of the Tarsal bones towards the fingers, where they are divided into four tendons. Three of these tendons insert two, three and four on the tops of the middle phalanx, the second of three bones in each of the four smaller fingers. As for the fourth tendon - the one that connects to the large finger - inserts on the proximal or first phalanx. This division of muscle along its middle side essentially forms a completely separate muscle knob as an extensor hallucis brevis or extensor large peaks.

Extensor Digitorum Brevis connects toThe middle fingers converging the extensor digitorum longus tendon. Much larger muscle, which starts in the front section of the lower leg, creates an extensor digitorum longus tendon, which intersects the ankle joint and similarly divided into four smaller tendons. These tendons connect to the middle and distal or the furthest, phalanx on their feet. Extensor digitorum brevis tendons approach the fingers under the thin extensor digitorum longus, each converging along the side of its neighboring Longus tendon. However, as the tendons of the brevis reach only to the middle phalanx, Longus tendons reach a little further than the tendons of the brevis and reach the distal phalanx.

Attachment of these tendons means that when the number of brevis muscle contrasts, the shortening of the muscle stretches up and forth to the tops of the fingers and straightens them when it lifts them. Likewise, the extensor digitorum longus performs this movement synergistically with the brevis. When it crosses ankle joint, contractions of this muscle first pull up n nAnd the leg at the ankle, which is an event known as dorsiflexe. At the same time, Longus expands his fingers in conjunction with the exposure to the Extensor Digitorum brevis. If the leg remains in a fixed position at the ankle and is extended on the legs, only the brevis will perform the action.