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  2. Trapezius - Wikipedia

    en.wikipedia.org/wiki/Trapezius

    An example of trapezius function is an overhead press. When activating together, the upper and lower fibers also assist the middle fibers (along with other muscles such as the rhomboids) with scapular retraction/adduction. The trapezius also assists in abduction of the shoulder above 90 degrees by rotating the glenoid upward.

  3. Erector spinae muscles - Wikipedia

    en.wikipedia.org/wiki/Erector_spinae_muscles

    Some of its fibers are continuous with the fibers of origin of the gluteus maximus. The muscular fibers form a large fleshy mass that splits, in the upper lumbar region, into three columns, viz., a lateral (iliocostalis), an intermediate (longissimus), and a medial (spinalis). Each of these consists of three parts, inferior to superior, as follows:

  4. Serratus anterior muscle - Wikipedia

    en.wikipedia.org/wiki/Serratus_anterior_muscle

    The evolution of the serratus anterior itself has resulted in (1) grouping of its distal and proximal fibers, (2) size reduction of its intermediate fibers, and (3) the insertion of its dominant superior and inferior parts onto the superior and inferior angles of the scapula. [7]

  5. Rhomboid major muscle - Wikipedia

    en.wikipedia.org/wiki/Rhomboid_major_muscle

    Antagonists to this function (upward rotators of the scapulae) are the serratus anterior and lower fibers of the trapezius. If the lower fibers are inactive, the serratus anterior and upper trapezius work in tandem with rhomboids and levators to elevate the entire scapula.

  6. Levator scapulae muscle - Wikipedia

    en.wikipedia.org/wiki/Levator_scapulae_muscle

    Levator scapulae forms part of the latter group together with rhomboid major, rhomboid minor, serratus anterior, and trapezius. The trapezius evolved separately, but the other three muscles in this group evolved from the first eight or ten ribs and the transverse processes of the cervical vertebrae (homologous to the ribs).

  7. List of skeletal muscles of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_skeletal_muscles...

    right medial, superior, and inferior recti (superior and inferior oblique muscles are the synergists) 2 1 temporoparietalis: head, ear, outer ear (left/right) auriculares muscles: epicranial aponeurosis: facial nerve [CNVII] fixes galeal aponeurosis 2 1 auricularis anterior: head, ear, auricular, extrinsic (left/right) temporal fascia: front of ...

  8. Muscles of respiration - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_respiration

    Apart from the above neck muscles, the following muscles have also been observed contributing to respiration: serratus anterior, pectoralis major and pectoralis minor, trapezius, latissimus dorsi, erector spinae, iliocostalis, quadratus lumborum, serratus posterior superior, serratus posterior inferior, levatores costarum, transversus thoracis ...

  9. Rhomboid muscles - Wikipedia

    en.wikipedia.org/wiki/Rhomboid_muscles

    The large rhombus-shaped muscle, located under the trapezius muscle, in the upper part of the thoracic region of the back, and the small muscle, in the same way, participate in the movement of the scapula. [4] Their functions are the following: [1] [2] [3] Drawing scapula superomedially; Supporting scapula; Rotating glenoid cavity inferiorly