What is the Linea Terminalis? A muscle used to divide the pelvis Midline point for sagittal scanning Boundary between the true and the false pelvis None are correct
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Name Date Section LABORATORY REPORT 22 Muscles of the Deep Back, Abdominal Wall, and Pelvic Floor PART A ASSESSMENTS Complete the following statements: 1. A band of tough connective tissue in the midline of the anterior abdominal wall called the serves as a muscle attachment. 2. The muscle spans from the ribs and the xiphoid process of the sternum to the pubic bones. 3. The forms the third layer (deepest layer) of the abdominal wall muscles. 4. The action of the external oblique muscle is to compress the abdomen and 5. The action of the rectus abdominis is to compress the abdomen and 6. The iliocostalis, longissimus, and spinalis muscles together form the
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Trunk Muscles Trunk muscles include those moving the vertebral column, those of the thorax and abdominal wall, and those of the pelvic floor. Match these terms with the correct statement or definition: Deep back muscles Diaphragm Erector spinae External abdominal oblique External intercostals Internal abdominal oblique Internal intercostals Linea alba Pelvic diaphragm Perineum Rectus abdominis Tendinous inscriptions Transversus abdominis 1. Group of muscles on each side of the back; primarily responsible for keeping the back straight. 2. Elevate the ribs during inspiration. 3. Responsible for the major movement of breathing. 4. Tendinous area of the abdominal wall extending from the sternum to the pubis. 5. Muscle located on each side of the linea alba; flexes the vertebral column (waist). 6. Subdivide the rectus abdominis at three or more locations. 7. The most deep lateral abdominal wall muscle. 8. Forms most of the pelvic floor. 9. Diamond-shaped area inferior to the pelvic floor.
The Quadratus lumborum is a posterior vertebral muscle that flexes the spine. The External anal sphincter is a circular muscle found in the pelvic floor. The Diaphragm is the major muscle of inhalation. The Linea alba is found between the ribs and functions to depress the rib cage. The Internal oblique is found between the ribs and functions to elevate the rib cage. The External oblique is an abdominal muscle with horizontal fibers. The Rectus abdominis is a fibrous line located along the midline of the trunk. The Longissimus cervicis is a superficial lateral muscle of the abdomen. The Internal intercostal is a neck muscle that extends the head. The External intercostal is the trunk midline muscle that compresses the abdomen.
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