Any duty or labor performed for another person. The delivery of a legal document that notifies the recipient of the commencement of a legal action or proceeding in which he or she is involved. The term service has various meanings, depending upon the context of the word.
DESCRIPTION. Scalenus anterior is one three deep muscles in the scalene group. ORIGIN. Scalenus anterior originates from the anterior tubercles of the transverse processes of the third, fourth, fifth and sixth cervical vertebrae. Cervical Spine Muscles Scalenes chiropractor 3D animation.DESCRIPTION. Scalenus medius is one three deep muscles in the scalene group. ORIGIN. Scalenus medius originates from the transverse process of the axis and the front of the posterior tubercles of the transverse processes of the lower five cervical vertebrae.ervical Spine Muscles Scalenes chiropractor 3D animation. INSERTION. Scalenus anterior inserts onto the scalene tubercle on the inner border of the first rib, and to a ridge on the upper surface of the rib, anterior to the groove for the subclavian artery.
(2) The scalenus medius is similar to the scalenus anterior and raises the first rib from above or bends to slightly rotate ... Click to read more below. The scalene muscles are lateral vertebral muscles that begin at the first and second ribs and pass up into the sides of the neck. There are three of these muscles.(1) The scalenus anterior muscle, which, when the neck is fixed, elevates the first rib to aid in breathing; or when the rib is fixed, bends the neck forward and sideways and rotates it to the opposite side.hen the scalene muscles are fixed from above, they elevate the first and second ribs to become respiratory muscles for breathing. Acting from below, they bend the spinal column to the same side or, if muscles act on both sides, the spinal column is slightly flexed.