Flashcards in Organization of the Abdomen Deck (20)
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1
What are the upper regions of the abdomen from right to left?
Right hypochondriac
Epigastric
Left hypochondriac
2
What are the middle regions of the abdomen from right to left?
Right lumbar
Umbilical
Left lumbar
3
What are the lower regions of the abdomen from right to left?
Right inguinal
Hypogastric (pubic)
Left inguinal
4
What level and dermatome is the xiphoid process?
T9
T7
5
What level is the costal margin?
L2
6
What level and dermatome is the pubic tubercle?
Inguinal ligament
L1
7
What level and dermatome is umbilicus?
L4
T10
8
What makes up the inguinal ligament?
External oblique aponeurosis
9
What is the fibrous line that runs down the middle of the abdomen?
Linea alba
10
What line runs at the bottom 1/4 of the abdomen?
Arcuate line
11
What are the rectus sheaths from outside to in?
External oblique
Internal oblique
Transversus abdominus
Transversalis fascia
Extraperitoneal connective tissue
Peritoneum
12
What do the IO and TA aponeurosis come together to form?
Conjoint tendon
13
What two arteries does the internal thoracic artery split into?
Musculophrenic (laterally)
Superior epigastric (medially)
14
What arteries supply the anterior abdominal wall?
Subcostal & intercostal
Deep circumflex iliac
Superficial circumflex iliac
Inferior epigastric
Internal thoracic
Musculophrenic
Superior epigastric
Superficial epigastric
15
What veins drain the anterior abdominal wall?
Internal thoracic
Musculophrenic
Superior epigastric
Lateral thoracic
Inferior thoracic
Paraumbilical & tributaries
16
What nerves innervate the anterior abdominal wall?
Thoraco-abdominal (T5-11)
Subcostal (T12)
Lateral femoral cutaneous (L2,3)
Iliohypogastric (L1) these two have
Ilioinguinal (L1) a common trunk
17
What makes up the superficial femoral ring?
Medial crus (Medial aspect of the superficial femoral ring)
Lateral crus (Lateral aspect of the superficial femoral ring)
Intercrural fibers (connecting them)
18
Where does the cremaster muscle and fascia arise from?
Internal oblique aponeurosis
19
What are intraperitoneal structures?
Structures with 2/3 or more covered with parietal peritoneum
20
