Anterior Abdominal Wall Flashcards
What are the spinal levels of the Thoracoabdominal nerves?
T7-T11
That are the spinal levels of the lateral cutaneous branches of the thoracic spinal nerves?
T7-T9 or T10
What spinal level is the Subcostal N. ?
T12
What thoracic spinal level contributes to the umbilicus?
T10
What are the two nerves that arise from the L1 spinal root?
1) Ilioinguinal Nerve: Internal Abdominal Oblique M., Transversus Abdominis M., & sensation to the hypogastric area
2) Iliohypogastric Nerve: Internal Abdominal Oblique M., Transversus Abdominis M., Mons pubis, Scrotum (Females: Anterior labia), & sensation to the medial aspect of the thigh
Superior Epigastric A.; this is a continuation of what?
Also, what does it supply?
1) Internal thoracic A.
2) Superior part of the Rectus Abdominis M.
Inferior Epigastric A.:
1) Branch of
1) External iliac A.
Once the external iliac A. passes the inguinal ligament it will become what?
Femoral A.
Where does lymph flow go above the transumbilical plane?
Axillary Lymph Nodes
Where does lymph flow go, medially, along the anterior abdominal wall?
To the Parasternal Lymph nodes
Where does lymph flow go, inferiorly, to the transumbilical plane?
Inguinal lymph nodes
If there has been recent surgery and the deep layers of the anterior abdominal wall become infected, what nodes does the lymph flow go to?
External Iliac Nodes
IF there is an infection around the umbilicus, what nodes does the lymph flow go to?
They go to the lumbar (aortic/caval nodes); can also go to the common iliac nodes
1) What is the derived embryology structure of the median umbilical fold?
2) What is the anatomical layout of this fold
1) Obliterated Urachus
2) Goes from the bladder to the umbilicus
1) What is the derived embryology structure of the medial umbilical fold?
2) What is the anatomical layout of this fold?
1) Obliterated umbilical arteries
2) Pubic tubercle to the Umbilicus
