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Related Flashcards
Cards In This Set
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How is the abdominal wall divided? What is it made up of?
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Anterior wallRight and left wallsPosterior wall
*Note: anterior and right/left walls are often called anterolateral abdominal walls, because there is no distinct border b/t the anterior and the lateral walls Made up entirely of musculoaponeuroses, except for the posterior abdominal wall (contains portion of the lumbar region of the vertebral column). |
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What is the superior boundary of the anterolateral abdominal wall?
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Ribs 7-10Xiphoid process
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What is the inferior boundary of the anterolateral abdominal wall?
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Inguinal ligamentUppermost margins of the pelvic girdle
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What is the anterolateral abdominal wall composed of?
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SkinSubcutaneous tissueMusclesAponeurosesDeep fasciaExtraperitoneal fatParietal peritoneum
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What are the 2 planes that divide the abdominal cavity into 4 quadrants?
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1. Transverse transumbilical plane2. Vertical median plane
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ON TEST: What organs are contained in the right upper quadrant?
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1. Right lobe of the liver2. Gallbladder3. Pylorus of stomach4. Duodenum5, Head of pancreas6. Right colic flexure7. Ascending colon (superior part) 8. Right half of transverse colon
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ON TEST: What organs are contained in the left upper quadrant?
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1. Left lobe of the liver2. Spleen3. Stomach4. Proximal portion of the ileum5. Body and tail of the pancreas6. Left colic flexure7. Descending colon (superior part)8. Left half of transverse colon9. Jejunum
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ON TEST: What organs are contained in the right lower quadrant?
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1. Cecum2. Appendix3. Most of the ileum4. Inferior part of ascending colon
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ON TEST: What organs are contained in the left lower quadrant?
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1. Sigmoid colon2. Inferior part of the descending colon
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Which sides of the body are the ascending and descending colons located on?
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Ascending colon = right side of bodyDescending colon = left side of body
(AR-DL) |
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What are the lines that divide the abdominal cavity into 9 regions?
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2 sagittal lines (mid-clavicular)2 transverse lines (subcostal and transtubercular)
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Innervation of the abdominal wall
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Anterior rami of spinal nerves T7-T12L1 (ilioinguinal nerve and iliohypogastric nerve)
*Note: dermatome map matches the distribution of the spinal nerves |
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T/F. None of the nerves that innervate the abdominal wall form plexuses.
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FALSE. T7-T12 spinal nerves do not form plexuses, but L1 does form a plexus- branches into the ilioinguinal nerve and the iliohypogastric nerve.
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Which spinal nerve innervates the umbilicus?
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T10
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Which spinal nerve innervates the inguinal fold?
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L1
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