Term
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Definition
1. largest serous membrane in human body
2. divided into visceral and parietal peritoneum
3. parts that exist between organs include: mesentary (sm. intestine), mesocolon, omentum, peritoneal ligaments |
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Term
| Retroperitoneal vs. intraperitoneal |
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Definition
1. retro=not covered in visceral peritoneum, fixed in place
2. intra=covered with peritoneum, movable
3. secondary retroperitonea=once covered by peritoneum |
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Term
| Neurovascular supply of peritoneum |
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Definition
1. vascular and neural innervation derived from structures over which peritoneum lies
2. visceral: autonomic innervation from organ
3. parietal: somatic from adjacent abdominal wall or diaphragm |
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Term
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Definition
1. cavity is narrow space of 18 to 20 um
2. divided into lesser and greater sac connected by omental foramen under liver |
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Term
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Definition
1. thin film serves as lubricant
2. subphrenic spaces deep to diaphragm active in absorption of fluid |
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Term
| abdominal ostium of uterine tube |
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Definition
| only natural opening into a serous cavity in body |
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Term
| dependent areas of peritoneal cavity (lowest) |
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Definition
1. supine: hepatorenal recess
2. erect: pelvic portion |
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Term
| Clinical Notes for peritoneum |
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Definition
1. surgical approaches
2. laproscopic surgery
3. internal hernias
4. ascites
5. paracentesis
6. peritonitis
7. guarding |
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Term
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Definition
1. continuation of descending thoracic aorta
2. retroperitoneal
3. terminates at L4, dividing into left and right common iliac
4. single midline branches: celiac trunk, superior mesenteric artery, inferior mesenteric artery, median sacral artery
5. paired branches include: inferior phrenic middle adrenal, renal, lumbar, ovarian and testicular |
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Term
| Clinical Notes for Abdominal Aorta |
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Definition
| 1. abdominal aortic aneurysm |
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Term
| Left and right Common Iliac arteries |
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Definition
1. terminal branches of abdominal aorta
2. divide into left and right external iliac arteries (become femoral-to thigh and leg) and left and right internal iliac arteries (to pelvis) |
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Term
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Definition
1. IVC originates at L5, union of left and right common iliac vein
2. common iliac formed by internal and external iliac veins
3. ascends to right of aorta thru central tendon
4. receives venous return from paired branches of abdominal aorta
5. venous return of major midline arteries first pass thru hepatic portal circulation of liver, enters IVC via hepatic veins |
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Term
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Definition
1. peripheral: close to organ
2. preaortic: origin of 3 major midline arteries, receive lymph from peripheral (from organs that get blood supply from midline arteries)
3. lumbar: along abdominal aorta and IVC, receive lymph from peripheral (from organs that get blood supply from paired arteries, abdominal muscles, and common iliac lymph nodes
4. common and external: receive lymph from pelvis and lower limbs
* afferents of preaortic and lumbar join cisterna chyli |
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Term
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Definition
1. confluence of large lymphatic vessels that lieson posterior abdominal wall adjacent to right side of body at L1
2. receives all lymph from below diaphragm
3. turns into thoracic duct which ascends into aortic hiatus to the thorax |
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Term
| Sympathetic innervation of abdomen |
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Definition
1. aortic plexus: continuous network of AN fibers and prevertebral ganglia from aortic hiatus to pelvic brim
a. preganglionic fibers are from thoracic and splanchnic nerves
b. postganglionic fibers follow branches of aorta to target organs
3. lumbar sympathetic trunks: continuous with sympathetic thoracic trunks
a. preganglionic splanchnic nerves pass thru here
b. postganglionic axons sent into somatic nerves of lumbar plexus |
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Term
| Parasympathetic innervation of abdomen |
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Definition
1. vagus nerve-preganglionic axons of vagus nerve enter aortic plexus and pass through en route to target organ
b. innervates all accessory organs of GI tract and most of GI tract up to proximal 2/3 of transverse colon
2. sacral part of parasympathetic system: preganglionic in S2 to S4, innervate distal third of transverse colon, descending, and sigmoid colon |
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