8. longissimus cervicis F 9. diaphragm 10. internal intercostal 11. external ana

Question

8. longissimus cervicis F 9. diaphragm 10. internal intercostal 11. external anal sphincter 12. internal oblique H. found between ribs; elevates rib cage I. fibrous line located along midline of trunk J. elevates anal sphincter K. posterior vertebral muscle that flexes spine L. found between ribs; depresses rib cage C. Descriptions Describe the location of each of the following muscles. 1. splenius cervicis - longissimus thoracis wo enesade A 2. longissimus thoracis 3. multifidus 4. anterior scalene 5. coccygeus D. Application and Analysis The anterior abdominal wall lacks bone. This being true, on what structure do the abdominal muscles insert? 1. 2. Describe the longissimus muscle group of the vertebral column. . Clinical Challenge A patient is admitted to the surgery ward for an appendectomy. Describe the layers of muscles the surgeon must cut in order to reach the appendix. 1.

Explanation / Answer

1 splenius cervicis muscle is extension of the cervical spine, rotation to the ipsilateral side and lateral flexion to the ipsilateral side.

2Longissimus Thoracis belongs to the intermediate column of the Sacrospinalis group of muscles. 3multifidus is a very thin muscle.Deep in the spine, it spans three joint segments, and works to stabilize the joints at each segmental level.The stiffness and stability makes each vertebra work more effectively, and reduces the degeneration of the joint structures. 4) antiror scalene: The scalene muscles are three paired muscles of the neck, located in the front on either side of the throat, just lateral to the sternocleidomastoid. There is an anterior scalene (scalenus anterior), a medial scalene (scalenus medius), and a posterior scalene(scalenus posterior). 5)The Coccygeus is a muscle of the pelvic floor, located posterior to levator ani and anterior to the sacrospinous ligament.

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