Posterior Abdomen Flashcards
4 Portions of Diaphragm
Central Tendon
Sternal Portion
Costal Portion
Lumbar Portion
3 Ligaments of Lumbar Portion of Diaphragm (and what they run over)
Lateral arcuate ligaments - quadratus lumborum
Medial arcuate ligaments - psoas major
Median arcuate ligament - aorta
Diaphragmatic Crura (3)
Left and right, come around aorta and insert into lumbar vertebrae, left one has suspensory ligament of duodenum off of it
2 Diaphragmatic Triangles
Sternocostal and vertebrocostal
9 Structures that Pass Through Diaphragm
Superior epigastric arteries Musculophrenic arteries Intercostal n.s and a.s Sympathetic trunks Splanchnic n.s Hemiazygos v. Azygos v. Subcostal n.s Phrenic n.s
6 Blood Supplies of Diaphragm
Inferior phrenic a.s Superior phrenic a.s Pericardicophrenic a.s Musculophrenic a.s Superior epigastric a.s Intercostal a.s
Innervation of Diaphragm (3)
Motor - phrenic n.s
Sensory - phrenic (central), and intercostals (peripheral)
7 Other Functions of Diaphragm
Defecation, micturition, parturition, sneezing, coughing, laughing, swallowing
3 Paired Visceral Branches of Abdominal Aorta (and levels)
Middle suprarenal arteries (L1) Renal arteries (L1) Gonadal arteries (L2)
3 Parietal Branches of Abdominal Aorta (and levels)
Inferior phrenic a.s - (T12)
Lumbar a.s - segmental
Middle sacral a. - (L4)
3 Branches of Inferior Epigastric Arteries
Cremasteric branch
Pubic branch
Muscular branch
3 Veins draining into L Renal Vein
Left gonadal, left suprarenal, and left inferior phrenic veins
7 Veins Draining into IVC
Common iliac v.s Lumbar v.s Right gonadal v. Renal v.s Right suprarenal v. Hepatic v.s Right Inferior Phrenic v.
3 Anomalies of IVC
Double vena cava
Left inferior vena cava
Retrocaval ureter
Fat Loss -> Nutcracker (2)
Fat person loses a lot of mesentery fat, mesentery hangs down more instead of being held out by fat, can start constricting L renal vein and 3rd part of duodenum