03/04
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
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| Q What m. passes through the lat. arcuate ligaments of the diaphragm? What are the attachments of this lig? | A quadratus lumborum, from ribs to TVP's
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| Q what m. passes through the medial arcuate ligament of the diaphragm? | A psoas
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| Q What are the three main foramen through the diaphragm? What levels are they, and what passes through them? | A Vena Cava at T8, Esophagus at T10, and aorta/thoracic duct at T12
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| Q Which of the foramen through the diaphragm enlarges/pinches on inspiration? | A vena cava enlarges, esophagus pinches, aortic does nothing (because it passes under median arcuate lig (N195)
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| Q What is the last branch of the thoracic aorta? What is the first branch of the abdominal aorta? | A Last branch in the thorax is the sup. phrenic, first branch in the abdomen is the inf. phrenic
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| Q What is the innervation of the psoas major?*** | A L2-4, from the lumbar plexus***
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| Q what is the innervation of the iliacus m.? | A femoral n.
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| Q This m. originates from the discs of T12-L5, as well as the Lumbar TVP's/bodies | A psoas major
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| Q What m. originates from the iliolumbar lig?*** | A quad. lumborum***
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| Q What would the action of the quad lumborum be? | A protects the kidneys, holds down rib 12 for deep inspiration, and of course extension/lat flexion
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| Q Where does the lumbar plexus form?*** | A within the psoas major m.***
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| Q Where does the subcostal n. pass in relation to the quad lumborum m.? What n. also crosses just inf? | A crosses ant., with the iliohypogastric below it (N496)
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| Q does the genitofemoral n. cross over the quad lumborum m? | A No, it pierces it anteriorly
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| Q This n. may present as a common stem with the iliohypogastric, but usually will pierce the psoas major. | A ilioinguinal (N496)
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| Q Which n. from the lumbar plexus enters the inguina canal? | A ilioinguinal
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| Q this n. pierces the psoas major as part of the lumbar plexus, and travels across the middle of the iliacus m. | A lat. cutaneous n. of the thigh
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| Q This is the largest n. of the lumbar plexus, and passes LATERAL to the psoas major*** | A femoral n.***
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| Q This n. from the lumbar plexus actually travels deep to the medial portion of the psoas major m. | A obturator n.
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| Q Is L5 a part of the lumbar plexus? | A no
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| Q What is considered the end of the lymphatic system in the abdomen? | A cysterna chyli (N266)
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