Get started! Location of the latissimus dorsi muscle: Highlighted in orange, the latissimus dorsi is a muscle of the posterior torso. Attachments: The muscle is formed of several strips originating from the second to eighth ribs, each of which attaches to the scapula. Attachments: Originates from the common tendon and attaches to the upper spine and skull. Anterior trunk muscle shows mix of axial and appendicular developmental patterns. Played 69 times. Transversus perinei superficialis muscle. Missed the LibreFest? Learning Objectives Outline the posterior muscles of the torso 3 years ago. Attachments: Originates from the lower ribs, thoracolumbar fascia, and pelvis, forming an aponeurosis toward the midline and linea alba. Posterior View. The intermediate muscles of the posterior contribute to movements of the ribcage during respiration. Science Quiz / Muscles of the Posterior Trunk Random Science Quiz Can you name the Muscles of the Posterior Trunk? Attachments: Originates from the lower spine and attaches to ribs 2 through 5. teres major. The intrinsic muscles of the posterior are responsible for maintaining posture and facilitating movement of the head and neck. [ "article:topic", "license:ccbysa", "showtoc:no" ], Outline the posterior muscles of the torso. by enanstine Plays Quiz not verified by Sporcle . Galleries General Dissected Views. Attachments: Originates from the spine and attaches several vertebrae higher. Location of the latissimus dorsi muscle: Highlighted in orange, the latissimus dorsi is a muscle of the posterior torso. It attaches to the clavicle and scapula. Actions: Maintains posture through the spine. Actions: Extends, flexes, and controls abduction and adduction of the spine and neck. 0. The intrinsic back muscles facilitate movement of the head and neck and are fundamental in maintaining posture and balance. 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. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Underneath the trapezius are the two rhomboid muscles, and the levator anguli scapulae. Carrying a heavy load of shopping in one hand requires muscle activity on the opposite side of the trunk to balance the weight. Actions: Extends, flexes, and controls abduction and adduction of the spine and neck. Deep Posterior Muscles. Two muscles in the deep layer are responsible for maintenance of posture and rotation of the neck. Attachments: Originates from the common tendon and attaches to the upper spine and skull. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. Biology Department, Boston College, Chestnut Hill, Massachusetts. Attachments: The trapezius originates from the skull and spine of the upper back and neck. Posterior muscles are split into three groups depending on their physiological location. Two muscles in the superficial layer are responsible for rotation of the head. Anna C. Redgrave. Many local muscle and fasciocutaneous flaps are available alt … The superficial muscles of the back are responsible for movement of the shoulder. Similarly, … Serratus Posterior Superior – The serratus posterior superior is a thin, rectangular-shaped muscle lying below the rhomboid muscles. Some of the trunk muscles have been given nicknames by gym rats. normalized muscle tone and reduced active muscle requirements. 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. It's … Location of the splenius muscle. Actions. 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. The posterior chain refers to the muscles located in the posterior, or backside, of the body. Actions: Contracts, flattening and increasing the volume of the thoracic cavity. (2)Biology Department, Boston College, Chestnut Hill, Massachusetts. As the name suggests, they are the most superficially located of the muscles covering the intermediate and intrinsic layers. The muscles of the anterior abdominal wall are largely involved in protecting the contents of the abdominal cavity, but also function to move the trunk and assist in other bodily functions. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. Watch the recordings here on Youtube! Actions: Retracts and rotates the scapula. latissiumus dorsi action. Save. Lying below the pectoral muscles, the intercostal muscles form … How to Play. 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. The intermediate muscles of the back assist in the movement of the rib cage during respiration. The skeletal muscles of the abdomen form part of the abdominal wall, which holds and protects the gastrointestinal system. Edit. Attachments: Originates from the common tendon and attaches to the lower ribs, spine, and skull. Describe the location and movements of the posterior muscles of the trunk. The anterior muscles of the trunk (torso) are associated with the front of the body, include chest and abdominal muscles. Homework. Attaches to the lower ribs and forms an aponeurosis toward the midline and linea alba. Attachments: The diaphragm has several points of origin along the sternum, the lower ribs, and lower vertebrae. All three originate from a common tendon associated with the pelvis. The muscle converges into a tendon attaching to the humerus. 0. Lying below the pectoral muscles, the intercostal muscles form the chest wall and play a key role in respiration. extension, adduction, and medial rotation of arm. Attachments: Originates from the pubis and attaches to the linea alba. 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. Chest muscles function in respiration while abdominal muscles function in torso movement and in maintenance of balance and As the name suggests, they are the most superficially located of the muscles covering the intermediate and intrinsic layers. 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. Today's Rank--0. You need to get 100% to score the 11 points available. The rectus abdominis are the muscles often referred to as the “six-pack abs” and are involved in numerous aspects of trunk stabilization and bending. Actions: Extends, adducts, and medially rotates the upper arm. Delete Quiz. Trapezius. Muscles of the posterior Trunk. Sagarin KA(1), Redgrave AC(1)(2), Mosimann C(3), Burke AC(1), Devoto SH(1). They are divided into three layers. One of the four muscles of the rotator cuff Origin is infraspinous fossa of the scapula Insertion at the middle facet of greater tubercle of the humerus Motion of the Infraspinatus is … Actions: Extends and rotates the head and maintains posture. Attachments: A broad origin on the upper regions of the spine, with each origin attaching several vertebrae higher or to the skull. 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. 0. Today 's Points. Attachments: Originates from the spine and attaches several vertebrae higher. Posterior muscles are split into three groups depending on their physiological location. Actions: Rotates and extends the head and neck. Whether anterior or posterior, if the muscle is located to the right side of the trunk, it can right laterally flex the trunk at the spinal joints and elevate the pelvis on the right side (and consequently depress the pelvis on the left side). Long-term outcomes in the treatment of defects of the spine and bony thorax have been proved superior if flaps were used. Actions: Rotates and extends the head and neck. The superficial muscles of the back are responsible for movement of the shoulder. Attachments: Originates from the lower ribs and attaches to the pelvis, forming an aponeurosis toward the midline and linea alba. (s Column A 1. Attachments: The latissimus dorsi originates from the lower spine and ribs and the upper pelvis and fascia of the deep trunk muscles. Author information: (1)Department of Biology, Wesleyan University, Middletown, Connecticut. The latissimus dorsi and trapezius on the right side have been cut away to expose the underlying muscles. All three originate from a common tendon associated with the pelvis. Three columnar muscles in the intermediate layer are responsible for flexing and extending the neck as well as maintaining posture. Anterior Trunk Muscles DRAFT. Live Game Live. Good posture is the result of balancing the skeleton in relation to gravity. Play. Muscles of the posterior portion of the trunk include muscles of the back, suboccipital region, and perineum region. The intercostals are muscles between the ribs that form the chest cavity wall. Have questions or comments? Attachments: Originates from the common tendon and attaches to the ribs and lower neck. Toward the midline, the muscles form aponeuroses, which merge into the linea alba. Solo Practice. Popular Quizzes Today . (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. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. They are divided into three layers. Outline the anterior muscles of the torso. Elevates, depresses, retracts, and rotates the scapula; rotate…. The subclavian nerve originates in both C5 and C6 and innervates the subclavius, a muscle that involves lifting the first ribs during respiration. retract scapula. One of us! Enter the correct letter in rhe answer blank. muscles.53 21 Without trunk muscle fixation of the rib cage and abdominal cavity the forces on the lower thoracic and lumbosacral disks would be 30 to 50% greater during near-maximum lifting.I7 Strength measurements for the trunk have been reported for selected trunk positions using isometric contractions3~ 24 and also for concen- tric (shortening) contractions through the range of … Relaxes and returns to original shape, reducing the volume of the thoracic cavity. The posterior trunk roughly encompasses the upper back from the shoulders to the lumbar area above the iliac crests. This quiz is incomplete! 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. 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. 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. Actions: Retracts and rotates the scapula. 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. Rhomboids. Learning Objective . The deltoid muscles are the triangular muscles over each shoulder. Feb 19, 2019 - Posterior Trunk Muscles Posterior Trunk Muscles Trunk Muscles #79201024006 – Muscles of the Trunk Diagram, with 44 Related files The intercostal muscles form the chest wall and function in respiration. Add to favorites 77 favs. The long thoracic nerve arises from C5, C6, and C7. The muscle fibers combine into a central tendon, which ascends and attaches to the surface of the pericardium. Posterior View of the Muscles of the Trunk. The muscles of the trunk counteract the forces on the limbs, and adjust the line of gravity over the foot base. The obliques are abdominal muscles that assist during bending and twisting of the torso. The superficial posterior muscles are associated with movement of the shoulder. Attachments: The trapezius originates from the skull and spine of the upper back and neck. Attachments: Originates from the lower spine and attaches to ribs 2 through 5. Game Points. Attachments: A broad origin up the length of the spine, with each origin attaching several vertebrae higher. Print; Share; Edit; Delete; Host a game. 11th - University grade . The vertical muscles aid in compressing the abdominal cavity, stabilizing the pelvis, and depressing the ribs when a person is walking. An example of an anterior abdominal muscle is your rectus abdominis, commonly referred to as the six-pack, which is worked with exercises like crunches. 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