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CSA chapter 5

materials for lecture test on ch 5

Question:AnswerDetails:
Name the 5 components of longitudinal ridgeline. Lumbar vertebrae, normal lumbar lordosis, psoas major muscles, inferior vena cava, aorta Longitudinal ridge divides inferiorly to form 2 oblique ridges that mark the location of the PELVIC INLET
Name the unpaired VISCERAL branches of the abdominal aorta: Celiac artery, Superior mesnteric artery, Inferior mesnteric artery MNEMONIC: "C.S.I."
Where does the abdominal aorta begin? 2.5 cm above transpyloric lines at aortic hiatus in diaphragm abd Ao begin slightly left of midline, becomes more midline as it descends.
Where does abdominal aorta bifurcate? at the level of L4 becomes R & L common iliac arteries.
Where does the Celiac artery begin? Arises from ventral surface of abdominal aorta just above transpyloric line near UPPER margin of L1 divides into: L gastric a., Common hepatic a., Splenic a.
Where does the Superior mesenteric artery begin? Arise just below transpyloric line, at hte level of the LOWER border of L1 Supplies jejunum, ileum, ascending colon, and most of transverse colon.
Where does the Inferior mesenteric artery begin? Arises from ventral surface of abdominal aorta just above transpyloric line at the level of L3, marked by subcostal plane. Near origin descends anterior to aorta, curves to the L ; supplies DISTAL portian of transverse colon, Descending colon, Sigmoid colon, and Rectum
name the 9 abdominal regions R & L Hypochondriac, R & L Lumbar (lateral), R & L iliac (inguinal), Epigastric, Umbilical, Hypogastric. divided by the subcostal, transtubercular, and R&L Midclavicular planes
What body planes divide the abdominal quadrants Transumbilical and Median planes Quadrants: RUQ, RLQ, LUQ, LLQ
Spinal cord ends at level of: L3 at BIRTH and L2 in ADULTS meninges, subarachnoid space, and CSF continues to S2; spinal tap performed between L3/L4-L4/L5.
List 3 regions of diaphragm: Sternal portion, Costal region, Vertebral (Lumbar) region Sternal portion arises from posterior of xiphoid; Costal region includes R & L hemidiaphragm; Vertebral region arises from upper lumbar vertebrae as a pair of muscular crura
Name 4 layers of anterolateral abdominal wall muscles, superficial to deep: 1- Rectus abdominus, 2- External oblique, 3- Internal oblique, 4- Transversus abdominis Oriented: 1- vertically, 2- inferomedially, 3- superomedially, 4- transversely
Name 2 pairs of posterior abdominal wall muscles: Psoas major, Quadratus lumborum Psoas lateral to lumbar vertebrae, quadrutus- thick muscular sheet which appears in transverse sections as lateral and posterior to Psoas
Name 3 major openings in diaphragm: Caval hiatus, Esophageal hiatus, Aortic hiatus Caval most superior & anterior, at level of T8; Esophageal 2-3 cm left of midline at the level of T10; Aortic most posterior at level of T12 (typically Aorta does not penetrate diaphragm, but passes between R&L crura slightly L of midline)
Name 3 paired visceral branches of abdominal aorta Suprarenal (adrenal) arteries, Renal arteries, Gonadal arteries Suprarenal- one on each side at level of SMA (lower border of L1); Renal arises on each side at level of upper L2; Gonadals on each side at level of lower margin of L2
what is the unpaired PARIETAL branch of the abdominal aorta? Middle sacral artery arises from POSTERIOR suface just proximal to aortic bifurcation.
Name the retroperitoneal structures: S=Suprarenal glands I=IVC + branches P=Pancreas head A=Aorta + branches D=Duodenum U=Ureters C=Cisterna chyli + lymph nodes K=Kidneys MNEMONIC: "SIP A DUCK" S=Suprarenal glands I=IVC + branches P=Pancreas head A=Aorta + branches D=Duodenum U=Ureters C=Cisterna chyli + lymph nodes K=Kidneys
What structures does the Superior mesenteric artery supply? jejunum, ileum, ascending colon, and most of transverse colon.
What structures does the Infereior mesenteric artery supply? DISTAL portian of transverse colon, Descending colon, Sigmoid colon, and Rectum
What does the Celiac artery divide into? L gastric artery, Common hepatic aretry, Splenic artery. (blank)
Created by: lefut