Xiao li's recent failure to learn his muscles was a loss. It's gotta start with the day we go to the gym. At the end of the day on friday, li and his colleagues had an exercise to relax, during which difficult plastic muscles were discussed. When li felt that the body's muscles were a large piece of the body's surface, others felt that the muscles were piece by piece, linked through various structures, which led to disagreement, and after a review and discussion, li was ashamed to lower his head。
And what exactly is the distribution of muscles in the body。
The muscles can be divided into musculoskeletal muscles, myocardial muscles and smooth muscles, depending on their organizational structure and function, which consist mainly of the heart wall, smoothing muscles, which are mainly distributed within the interior of the organs and vascular walls, and skeletal muscles are mainly found in the torso and limbs. We're looking at the distribution of skeletal muscles。
The skeletal muscles can be divided into head muscles, neck muscles, torso muscles, upper limb muscles and lower limb muscles depending on their distribution. These muscles are surrounded by devices such as dysentery, cleavage, gills and seed bones to assist in maintaining their position and coordinating their activities. And these muscles control motion。
The following muscles are examples:
The pecultex in a neck muscle is located on both sides of the neck, and contraction on one side leads to a constriction of the head to the opposite side of the face; contraction on both sides leads to a backer。
Triangular muscles in upper limb muscles, which are located on the shoulder, can extend the shoulder joint, the front muscles can reduce the shoulder joints and rotate inside, and the back muscles can stretch and rotate the shoulder。
The back broad muscles in the 3-back muscles, which are located on the lower part of the back and on the back of the chest, can extend behind the shoulder joint, inline and rotate, and can be drawn up when fixed。
In the light of the above, we believe that you have a certain understanding of the distribution and role of muscles and hope that it will help you!
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