Muscles of the human body pdf

This is a table of skeletal muscles of the human anatomy. Almost every muscle constitutes one part of a pair of identical bilateral muscles, found on both sides, resulting in approximately muscles of the human body pdf pairs of muscles, as presented in this article. Nevertheless, the exact number is difficult to define because different sources group muscles differently, e. The muscles of the human body can be categorized into a number of groups which include muscles relating to the head and neck, muscles of the torso or trunk, muscles of the upper limbs, and muscles of the lower limbs.

The action refers to the action of each muscle from the standard anatomical position. In other positions, other actions may be performed. These muscles are described using anatomical terminology.

2 occipital bellies and 2 frontal bellies. Acting alone, tilts head to its own side and rotates it so the face is turned towards the opposite side. Acting together, flexes the neck, raises the sternum and assists in forced inspiration. Opens the jaw when the masseter and the temporalis are relaxed.

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