Chest muscles function in respiration while abdominal muscles function in torso movement and in maintenance of balance and Actions: The superior region supports the arm and elevates and rotates the scapula, the intermediate region retracts the scapula, and the inferior region rotates and depresses the scapula. Add to Cart | View Cart ⇗ | Info. Anterior trunk muscle shows mix of axial and appendicular developmental patterns. The most superior of the muscles, those above the axis of the femoral neck in the acetabulum, can also contribute to abduction. (adsbygoogle = window.adsbygoogle || []).push({}); The anterior muscles of the torso (trunk) are those on the front of the body, including the muscles of the chest, abdomen, and pelvis. The intercostals are muscles between the ribs that form the chest cavity wall. Toward the midline, the muscles form aponeuroses, which merge into the linea alba. Posterior muscles are split into three groups depending on their physiological location. Location of the latissimus dorsi muscle: Highlighted in orange, the latissimus dorsi is a muscle of the posterior torso. Author information: (1)Department of Biology, Wesleyan University, Middletown, Connecticut. Attachments: Originates from the common tendon and attaches to the lower ribs, spine, and skull. The superficial muscles of the back are responsible for movement of the shoulder. Posterior View of the Muscles of the Trunk. They are divided into three layers. Save. Both attach to the humerus. 11. Actions. Similarly, all muscles that cross the spinal joints posteriorly are extensors of the trunk at the spinal joints and anterior tilters of the pelvis at the lumbosacral joint. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Select a different color for each muscle description with a coding circle and color the ccxling circles and corresponding muscles on Figure 6—8. The skeletal muscles of the abdomen form part of the abdominal wall, which holds and protects the gastrointestinal system. It attaches to the clavicle and scapula. The muscles of the trunk counteract the forces on the limbs, and adjust the line of gravity over the foot base. Muscles of the posterior Trunk. Key Points. Two muscles in the deep layer are responsible for maintenance of posture and rotation of the neck. Enter the correct letter in rhe answer blank. Many local muscle and fasciocutaneous flaps are available alt … Kathleen A. Sagarin. Actions: Adducts and rotates the upper arm. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. Department of Biology, Wesleyan University, Middletown, Connecticut. (2)Biology Department, Boston College, Chestnut Hill, Massachusetts. Two muscles in the deep layer are responsible for maintenance of posture and rotation of the neck. The long thoracic nerve arises from C5, C6, and C7. Actions: Retracts and rotates the scapula. [ "article:topic", "license:ccbysa", "showtoc:no" ], Outline the posterior muscles of the torso. All three originate from a common tendon associated with the pelvis. The muscle fibers combine into a central tendon, which ascends and attaches to the surface of the pericardium. When it comes to the trunk, there are three points for external stabilization: the posterior, the anterior and the lateral. Galleries General Dissected Views. Attachments: The pectoralis minor originates from the third to fifth ribs and attaches to the scapula. The back is characterized by numerous muscle groups which allow movement of the shoulder, head, and neck, as well as aid in respiration and maintain posture and balance. Attachments: The clavicular region originates from the clavicle and the sternocostal region originates from the sternum and the fascia of the oblique muscles of the abdomen. Pectoral muscles lie in the chest and exert force through the shoulder to move the upper arm. Superficial and deep muscles of the trunk. The intercostals are muscles between the ribs that form the chest cavity wall. Edit. Have questions or comments? Actions: Extends and rotates the head and maintains posture. How to Play. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. This quiz is incomplete! Attachments: Originates from the spine and attaches several vertebrae higher. 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. 0. While this guide focuses on anterior trunk Play. 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. We are pleased to provide you with the picture named Trunk Muscles Diagram Muscles Of The Trunk Diagram – Anatomy Organ.We hope this picture Trunk Muscles Diagram Muscles Of The Trunk Diagram – Anatomy Organ can help you study and research. Actions: Extends, flexes, and controls abduction and adduction of the spine and neck. Attachments: A broad origin up the length of the spine, with each origin attaching several vertebrae higher. Actions: Maintains posture through the spine. Department of Biology, Wesleyan University, Middletown, Connecticut. Functionally, the diaphragm separates the thoracic cavity, containing the lungs and heart and enclosed by the rib cage  from the abdominal cavity, which contains the digestive organs. Two muscles in the superficial layer are responsible for rotation of the head. The posterior or back muscles perform a wide range of functions, including movement of the shoulder, head, and neck and assisting in respiration, posture, and balance. Free online quiz Muscles of the Posterior Trunk; Muscles of the Posterior Trunk learn by taking a quiz; Online quiz to learn Muscles of the Posterior Trunk; Your Skills & Rank. Actions: Supports and depresses the scapula. Outline the anterior muscles of the torso. Attachments: Originates from the common tendon and attaches to the ribs and lower neck. Advertisement . Attachments: Originates from the lower ribs, thoracolumbar fascia, and pelvis, forming an aponeurosis toward the midline and linea alba. Search for more papers by this author . Attachments: Originates from the lower ribs and attaches to the pelvis, forming an aponeurosis toward the midline and linea alba. Attachments: The trapezius originates from the skull and spine of the upper back and neck. Feb 19, 2019 - Posterior Trunk Muscles Posterior Trunk Muscles Trunk Muscles #79201024006 – Muscles of the Trunk Diagram, with 44 Related files 71% average accuracy. Science Quiz / Muscles of the Posterior Trunk Random Science Quiz Can you name the Muscles of the Posterior Trunk? Lying below the pectoral muscles, the intercostal muscles form … Edit. Attachments: Originates from the lower spine and attaches to ribs 2 through 5. 11th - University grade . The objective of this report was to study the influence of the orientation of gravitational loading on the behavior of anterior and posterior trunk muscles during anterior trunk flexion-extension. Long-term outcomes in the treatment of defects of the spine and bony thorax have been proved superior if flaps were used. Muscles of the Trunk. Biology. posterior muscles of the trunk Trunk muscles have a few very important functions; they contribute to the protection of the thoracic and abdominopelvic viscera and they assist essential body activities such as breathing , movement , defecation and micturition. 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