RETROPERITONEAL CAVITY
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1
Retroperitoneal = anything the peritoneum
Retroperitoneal = anything behind the peritoneum
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SAD PUCKER MNEMONIC
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Primary verus Secondary Peritoneum
= was always retro
= Started as intra, became retro
= was always retro
= Started as intra, became retro
Primary verus Secondary Peritoneum
Primary = was always retro
Secondary = Started as intra, became retro
Primary = was always retro
Secondary = Started as intra, became retro
4
What are the 5 muscles of the posterior abdominal wall?
(1) Psoas major muscle
(2) Psoas minor muscle
(3) Quadratus lumborum muscle
(4) Ilium
(5) Iliacus muscle
(2) Psoas minor muscle
(3) Quadratus lumborum muscle
(4) Ilium
(5) Iliacus muscle
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Lateral to Psoas Major:
Medial to Psoas Major:
Pierces Psoas Major:
Medial to Psoas Major:
Pierces Psoas Major:
Lateral to Psoas Major: Femoral nerve
Medial to Psoas Major: Obturator nerve
Pierces Psoas Major: Genitofemoral
Medial to Psoas Major: Obturator nerve
Pierces Psoas Major: Genitofemoral
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TEST QUESTION Insertion of the diaphram is the
TEST QUESTION Insertion of the diaphram is the central tendon
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3 parts of the origin of the diaphram
1. Sternal part (post surface of xiphoid)
2. Costal part (lower 6 ribs + CC)
3. Vertebral part (vert columns and acurate ligament)
2. Costal part (lower 6 ribs + CC)
3. Vertebral part (vert columns and acurate ligament)
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TQ! The right crus arises from the sides of the bodies of and intervertebral discs, and it splits to
TQ! The right crus arises from the sides of the bodies of (L1-3) and intervertebral discs, and it splits to enclose the esophagus.
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TQ! The left crus arises from the sides of the bodies of
and the intervertebral disc.
and the intervertebral disc.
TQ! The left crus arises from the sides of the bodies of
L1-2 and the intervertebral disc.
L1-2 and the intervertebral disc.
11
TQ! Lateral to the crura, the diaphragm arises from the and
TQ! Lateral to the crura, the diaphragm arises from the medial and lateral arcuate
ligaments
ligaments
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TQ! The medial arcuate ligament extends from the to the
, and the lateral arcuate ligament extends from the
to the
, and the lateral arcuate ligament extends from the
to the
TQ! The medial arcuate ligament extends from the side of the body of L2 to the
transverse process of L1, and the lateral arcuate ligament extends from the
transverse process of L1 to the rib 12
transverse process of L1, and the lateral arcuate ligament extends from the
transverse process of L1 to the rib 12
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Right dome of the diaphram is superior to and the left is inferior to
Right dome of the diaphram is superior to rib 5 and the left is inferior to rib 5
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These domes support the right and left
lungs, whereas the central tendon supports
the
lungs, whereas the central tendon supports
the
These domes support the right and left
lungs, whereas the central tendon supports
the heart.
lungs, whereas the central tendon supports
the heart.
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The pericardiophrenic artery (which comes from the ) accompanies the
The pericardiophrenic artery (which comes from the internal thoracic) accompanies the phrenic nerve.
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What are the 5 blood supplies of the diaphram?
1. Musculophrenic artery (internal thoracic)
2. Superior phrenic artery (thoracic aorta)
3. Inferior phrenic artery (abdominal aorta)
4. Pericardiophrenic artery (internal
thoracic). It accompanies the phrenic
nerve
5. Posterior intercostal arteries
2. Superior phrenic artery (thoracic aorta)
3. Inferior phrenic artery (abdominal aorta)
4. Pericardiophrenic artery (internal
thoracic). It accompanies the phrenic
nerve
5. Posterior intercostal arteries
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Motor Supply of Diaphram: Phrenic nerve (C3,4,5). The left phrenic
supplies the and . The periphery is
supplied by the
supplies the and . The periphery is
supplied by the
Motor Supply of Diaphram: Phrenic nerve (C3,4,5). The left phrenic
supplies the left dome and half the right
dome (central areas). The periphery is
supplied by the intercostal nerves
supplies the left dome and half the right
dome (central areas). The periphery is
supplied by the intercostal nerves
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Sensory Supply of Diaphram: The central portion is supplied by the
. The periphery by the
. The periphery by the
Sensory Supply of Diaphram: The central portion is supplied by the
phrenic. The periphery by the intercostal
nerves
phrenic. The periphery by the intercostal
nerves
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NERVES OF THE
POSTERIOR
ABDOMINAL
WALL: and
Plexuses
POSTERIOR
ABDOMINAL
WALL: and
Plexuses
NERVES OF THE
POSTERIOR
ABDOMINAL
WALL: Lumbar and
Sacral Plexuses
POSTERIOR
ABDOMINAL
WALL: Lumbar and
Sacral Plexuses