Two muscles in the deep layer are responsible for maintenance of posture and rotation of the neck. Three columnar muscles in the intermediate layer are responsible for flexing and extending the neck as well as maintaining posture. Attachments: Originates from the upper spine and attaches to the skull. Five muscles form the abdominal wall, divided into vertical and flat groups. Long-term outcomes in the treatment of defects of the spine and bony thorax have been proved superior if flaps were used. The intercostal muscles form the chest wall and function in respiration. Intercostal muscles of the anterior trunk: Deep muscles of the chest and front of the arm, with the boundaries of the axilla. Search for more papers by this author . Attachments: A broad origin on the upper regions of the spine, with each origin attaching several vertebrae higher or to the skull. 0. Science Quiz / Muscles of the Posterior Trunk Random Science Quiz Can you name the Muscles of the Posterior Trunk? Two muscles in the superficial layer are responsible for rotation of the head. The intermediate muscles of the posterior contribute to movements of the ribcage during respiration. Attachments: Originates from the spine in the upper back and attaches to the scapula inferior to the levator scapulae attachment. Location of the multifidus muscle: Highlighted in orange, the multifidus muscle is a muscle of the posterior trunk and lies interior to a majority of muscles, CC licensed content, Specific attribution, http://en.wikipedia.org/wiki/Innermost_intercostal_muscle, http://en.wiktionary.org/wiki/pelvic_floor, http://en.wikipedia.org/wiki/Pyramidalis_muscle, http://en.wikipedia.org/wiki/Transversus_abdominis_muscle, http://en.wikipedia.org/wiki/Levatores_costarum_muscle, http://en.wikipedia.org/wiki/External_intercostal_muscles, http://en.wikipedia.org/wiki/Transversus_thoracis_muscle, http://en.wikipedia.org/wiki/Abdominal_internal_oblique_muscle, http://en.wikipedia.org/wiki/Intercostal_muscle, http://en.wikipedia.org/wiki/Subcostales_muscle, http://en.wikipedia.org/wiki/Abdominal_external_oblique_muscle, http://en.wikipedia.org/wiki/Internal_intercostal_muscles, http://en.wikipedia.org/wiki/Thoracic_diaphragm, http://en.wikipedia.org/wiki/Iliococcygeus_muscle, http://en.wikipedia.org/wiki/Puborectalis_muscle, http://en.wikipedia.org/wiki/Coccygeus_muscle, http://en.wikipedia.org/wiki/Rectus_abdominis_muscle, http://en.wikipedia.org/wiki/Quadratus_lumborum_muscle, http://en.wikipedia.org/wiki/Pelvic_diaphragm, http://en.wikipedia.org/wiki/Cremaster_muscle, http://en.wikipedia.org/wiki/Pubococcygeus_muscle, http://en.wikipedia.org/wiki/rectus%20abdominis, http://en.wikipedia.org/wiki/levatores%20costarum, http://en.wikipedia.org/wiki/File:Gray392.png, http://en.wikipedia.org/wiki/File:Gray411.png, http://en.wikipedia.org/wiki/Superficial_perineal_pouch, http://en.wikipedia.org/wiki/Rectus_capitis_posterior_minor_muscle, http://en.wikipedia.org/wiki/Transversus_perinei_superficialis_muscle, http://en.wikipedia.org/wiki/Serratus_posterior_inferior_muscle, http://en.wikipedia.org/wiki/Splenius_cervicis_muscle, http://en.wikipedia.org/wiki/Splenius_capitis_muscle, http://en.wikipedia.org/wiki/Erector_spinae, http://en.wikipedia.org/wiki/Iliocostalis, http://en.wikipedia.org/wiki/Serratus_posterior_superior_muscle, http://en.wikipedia.org/wiki/Transversospinales_muscles, http://en.wikipedia.org/wiki/Sphincter_ani_internus_muscle, http://en.wikipedia.org/wiki/Transversus_perinei_profundus_muscle, http://en.wikipedia.org/wiki/Semispinalis_dorsi, http://en.wikipedia.org/wiki/Rectus_capitis_posterior_major_muscle, http://en.wikipedia.org/wiki/Rotatores_muscle, http://en.wikipedia.org/wiki/Deep_perineal_pouch, http://en.wikipedia.org/wiki/Semispinalis_capitis, http://en.wikipedia.org/wiki/Multifidus_muscle, http://en.wikipedia.org/wiki/Latissimus_dorsi_muscle, http://en.wikipedia.org/wiki/Bulbospongiosus_muscle, http://en.wikipedia.org/wiki/Obliquus_capitis_superior_muscle, http://en.wikipedia.org/wiki/Intertransversarii_muscle, http://en.wikipedia.org/wiki/Obliquus_capitis_inferior_muscle, http://en.wikipedia.org/wiki/Sphincter_urethrae, http://en.wikipedia.org/wiki/Sphincter_ani_externus_muscle, http://en.wikipedia.org/wiki/Semispinalis_cervicis, http://en.wikipedia.org/wiki/Ischiocavernosus_muscle, http://en.wikipedia.org/wiki/Interspinales_muscle, http://en.wikipedia.org/wiki/compressor%20urethrae, http://www.boundless.com//physiology/definition/internal-urethral-sphincter, http://en.wikipedia.org/wiki/File:Multifidi.png, http://en.wikipedia.org/wiki/File:Musculus_splenius_capitis_marked.png, http://en.wikipedia.org/wiki/File:Latissimus_dorsi_.PNG. Outline the posterior muscles of the torso. Actions: Retracts and rotates the scapula. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. Serratus Posterior Inferior: The serratus posterior inferior is a broad muscle lying beneath the latissimus dorsi. Actions: Extends, flexes, and controls abduction and adduction of the spine and neck. The flat muscles act to flex, laterally flex, and rotate the trunk. The intrinsic muscles of the posterior are responsible for maintaining posture and facilitating movement of the head and neck. 11. Today 's Points. The deltoid muscles are the triangular muscles over each shoulder. Add to Cart | View Cart ⇗ | Info. extends, adducts, and medially rotates arm. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Legal. Intercostal muscles of the anterior trunk: Deep muscles of the chest and front of the arm, with the boundaries of the axilla. How to Play. Pectoral muscles lie in the chest and exert force through the shoulder to move the upper arm. All three originate from a common tendon associated with the pelvis. Attachments: Originates from the pelvis and thoracolumbar fascia, running through the back. Rate 5 stars Rate 4 stars Rate 3 stars Rate 2 stars Rate 1 star . Sagarin KA(1), Redgrave AC(1)(2), Mosimann C(3), Burke AC(1), Devoto SH(1). Actions: Extends and controls abduction and adduction of the spine and neck. The muscles of the trunk counteract the forces on the limbs, and adjust the line of gravity over the foot base. The deeper posterior hip muscles act as rotators of the hip, rotating the femur and leg from a toes-forward to a toes-out position. All intercostal muscles originate on the lower border of a rib and attach to the upper border of the rib below. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. As the name suggests, they are the most superficially located of the muscles covering the intermediate and intrinsic layers. (s Column A 1. Anterior trunk muscles (Steffen Jähde) Rektumresektion laparoskopisch, anterior (Webop - die multimediale OP-Lehre) Klicke hier, um einen neuen Artikel im DocCheck Flexikon anzulegen. To play this quiz, please finish editing it. The intrinsic back muscles facilitate movement of the head and neck and are fundamental in maintaining posture and balance. 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