Abdomen 4 Flashcards
What 5 muscles make up the posterior abdominal wall?
Diaphragm (attaches to L1 to L3 vertebrae)
Psoas Major = hip flexor (goes under inguinal ligament)
Psoas Minor
Quadratus lumborum
Iliacus (under inguinal ligament)
What sits on top of iliac fossa?
cecum
What does the kidney sit above/on top of?
Quadratus lumborum
Which muscles form the posterior abdominal wall closest to the lumbar vertebrae?
Psoas Major
Which muscles from the posterior abdominal wall more laterally?
Quadratus Lumborum
What muscle forms the posterior abdominal wall superiorly?
diaphragm
What passes behind the median arcuate ligament?
Aorta (at T12)
How is the diaphragm attached to the bones of posterior abdominal wall?
via Right and Left crus
What structures pass through diaphragm at T12?
Aorta, Thoracic Duct
How are the openings in the diaphragm (hiatus) for Aorta and IVC kept open?
arcuate mediaN ligament keep the aorta and IVC from compressing
What passes under the medial arcuate ligaments?
Psoas Major
What passes through sleeve of right crus tendonous connective tissue?
Esophagus
Unlike the blood vessels passing through tendonous (non-collapsable rigid structures) of the diaphragm, what area does the esophagus pass through?
directly through smooth muscle of diaphragm which is squishy and collapsible!
at T10
What passes through diaphragm with the esophagus at T10?
Vagal trunks
What travels with the IVC through T8?
Phrenic nerves
