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Functions Of Muscle Attachments In The Body

By Janelle Burnett


The strength, speed and direction of movement are determined by muscle attachments. They come either as direct or indirect which affects how they function and support other body parts. Understanding these differences allows one to appreciate the uniqueness of each action. You will require magnifying instruments to identify these differences.

You will identify an indirect attachment by the fact that muscles seem to end before getting to the bone. There is a mass of tendons separating muscles and the bone. This region is populated by fibrous bands, theicks and sheets. These sheets are identified as aponeurosis and provide the strength required to complete the connection between the bones and muscles.

The case of direct attachment appears as though nothing separates the muscle and the bone. The impression created is that the muscles have their origin in the bone. The collagen fibers between the bone and the muscle are microscopic. This separation can only be identified using microscopic instruments.

Muscles makes bones move in relation to others. The origin is always stationary while the insertion moves. There is a thick region that is located between the origin and insertion. This is referred to as the belly of that particular muscle. There are different types of muscles depending on their behavior and features in relation to their location in the body.

One distinct muscle type is the intrinsic muscle. It begins and ends in the belly. This means that its functions are significantly different and it can only be found in a certain part of human body. Action is what results when muscles move. The connections between one group of muscles and the other result in coordinated body action.

The body contains different categories of muscles explaining the behavior and functions of the body. The classes are antagonist, agonist, fixators and synergist. They work in distinct ways allowing actions to be coordinated.

The largest force in the human body is produced by agonist. They are thus described as prime movers. They allow basic movement to take place. They are assisted by synergist working in groups. One agonist requires more than one synergist. Synergists coordinate and restrict movement of agonist muscles. It is the synergists that offer direction to action in the body.

Antagonists work in opposition to the force created by agonist. They achieve this through restriction of range or speed of movement. Such action creates an antagonistic pair where muscles are pulling in different directions. Such action and reaction leads to coordinated movement with specific direction and speed.

The last category is referred to as fixators because they are specific for bones movement. They ensures that bone movement is restricted to prevent straining or dislocations. These restrictions prevent use of excessive force that would damage other tissues of the body. The relationship between these muscles is mutual ensuring that the body achieves coordinated movement.

Muscle attachments vary depending on the part of the human body and the nature of movement required. Identifying the attachment helps a learner appreciate movement. A combination of different muscle types leads to successful movement and action on the body.




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