Muscles (muscular system)

Interdigitus muscles of waist, chest and neck

The intersporeal muscles of the waist, chest and neck (mm., Intertransversari lumborum, thoracis et cervicis) are formed by short beams connecting the transverse processes of adjacent vertebrae, are better expressed at the level of the lumbar and cervical spine.

Suboccipital muscles

The suboccipital muscles (mm. Suboccipitales) include the large posterior rectus muscle of the head, the small posterior rectus muscle of the head, the upper and lower oblique muscles of the head.

Muscles of the back

Muscles of the back (musculi dorsi) are paired, occupying the entire dorsal side of the trunk, starting from the region of the sacrum and the adjacent parts of the iliac crests to the base of the skull. Being located layer by layer, these muscles have complex anatomical and topographical relations, due to the peculiarities of their development and function.

Muscles of the trunk

Muscles of the body are divided into muscles of the back, chest and abdomen. The posterior regions of the trunk (regiones dorsales) encompass the entire posterior surface of the trunk. The upper back boundary is formed by the outer occipital protrusion and the superior occipital line of the occipital bone. The lower boundary is the level of the sacroiliac joints and the coccyx.

Muscles

Skeletal muscles, attached to the bones, set them in motion, participate in the formation of the walls of the body cavities: the oral, thoracic, ventral, pelvis, are part of the walls of some internal organs (pharynx, upper part of the esophagus, larynx), are among the auxiliary organs of the eye (oculomotor muscles), have an effect on the auditory ossicles in the tympanum.

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