What are lumbricals?

lumbricals are small muscles in their hands and feet. They are inner, which means they are part of the inlet to do. They were named after the scientific family of Lumbricidae, which includes earthworms due to a long appearance of worms muscles. They are responsible for the bending of certain joints and expanding other joints in the fingers and feet. Unlike most other muscles, lumbricals are not anchored to the bones, but instead are attached to the tendons that reach from other muscles. They cause flexion or bending of metacarpophlangal joints, larger joints at the base of four fingers because it lies under the joint. In interphalangal joints they pass through the upper part of the joint and cause extension or straightening. Interphalangal joints are those on midoppet every digits and just in front of the finger. As with those in the leg, these lumbricals are active in the bending of larger joints at the base of the numbers, metatarsal phalanxal joints of the fingers. They also create extensions in the mezzanine joints of the fingers.

lumbricals hands receive signals from the brain through the median and ulnar nerves. The middle nerve gives the feelings and movement messages lumbricals indicators and middle fingers, and the slight nerve connects the lumbrice of the ring and pinky fingers with the central nervous system. Nerve signals are carried in the leg by media and side plants. The media plantar nerve adds only the most media lumbric, one that controls the first small finger next to the large finger and the other three fingers are supplied by the side plantar nerve.