Abdomen Flashcards
What do the spinal nerves T7-T9 supply?
The skin superior to the umbilicus
What does T10 innervate?
the skin around the umbilicus
Spinal nerve T11, plus the cutaneous branches of the subcostal T12, the iliohyposgastric and the ilio-inguinal (L1) nerves all innervate:
the skin inferior to the umbilicus
The anterior abdominal ______ pierce the rectus sheath a short distance from the median plane, after the rectus abdominus muscle has been supplied
cutaneous branches
what are the 6 common causes of an abdominal portrusion?
all start with the letter F:
Food, Fetus, Flatus, Feces, Fluid, Fat
Eversion of the umbilicus may be a sign of _____, usually resulting from ascites or a large mass.
intra-abdominal pressure
What is an “ascites”?
Abdominal Accumulation of serous fluid in the peritoneal cavity
Hepatomegaly refers to an
enlarged liver
Where do the thoraco-abdominal (T7-T11) nerves run?
Between the external and internal oblique muscles
______ nerve runs along the inferior border of the 12th rib to supply the skin over the anterior superior iliac spine and hip.
Subcostal nerve (T12)
What does the iliohypogastric nerve (L1) innervate?
The skin over the iliac crest and lower pubic region
What does the ilioinguinal nerve (L1) innervate?
skin of the medial aspect of the thigh, the scrotum or labium majus, and the mons pubis.
The nerves innervating the abdominal region are susceptible to injury (surgery, trauma, etc), which may result in _______.
weakening of the muscles.
In the inguinal region, muscle weakness (due to trauma to the nerves) may predispose an individual to the development of
an inguinal hernia
The muscular portion of the external oblique muscle _______ with slips of the serratus anterior muscle
interdigitates
The aponeurotic portion of the external oblique muscle and the serratus anterior muscle contributes to _______
the anterior wall of the rectus sheath
The three superficial inguinal branches of the femoral artery ____, ______, _____ and the great saphenous vein lie in the fatty layer of the subcutaneous tissue.
superficial circumflex iliac artery
The cutaneous branches of the iliohypogastric and the ilio-inguinal nerves (L1) course between the _____
internal and external oblique muscles
When an appendectomy (gridiron) incision is made, you must avoid the _____ and _____.
ilihypogastric and ilioinguinal nerves (L1)
What do the iliohypogastric and the ilio-inguinal nerves (L1) supply?
The internal oblique and the transversus abdominus
The ____ is located superior to the inguinal ligament at the midpoint between the anterior superior iliac spine and the pubic tubercle.
deep inguinal ring
What are the two branches of the external iliac artery?
The deep circumflex iliac and the inferior epigastric arteries
The inguinal canals in females are _____ than those in males
narrower
