Posted by CLP on October 02, 2017 at 09:04:38:
In Reply to: True/False Questions Anterior Abdominal Wall Part I posted by lae2 on September 23, 2017 at 13:41:16:
1. The external oblique aponeurosis divides into the anterior and posterior lamina at the linea semilunaris.
a. False: internal oblique aponeurosis divides
2. Inferior to the arcuate line, the rectus abdominis muscle is in contact with extraperitonal connective tissue.
a. True: via the transversalis fascia
3. The inferior epigastric artery anastomoses with the internal thoracic artery within the rectus abdominis muscle.
a. False: anastomoses w/ superior epigastric artery from internal thoracic artery
4. Inferior to the arcuate line, the aponeuroses of the external oblique, internal oblique, and transversus abdominis muscles pass posterior to the rectus abdominis muscle.
a. False: runs anterior to rectus abdominis muscle
5. The umbilicus is typical at the L3 vertebral level and the T10 dermatome level.
6. The xiphoid process is at the T8/9 vertebral level and the T6 dermatome level.
7. Preganglionic fibers arising from the intermediolateral cell column at spinal cord levels T5-9 travel within the greater splanchnic nerve and impact stasis along the same regions of the alimentary canal that receive arterial supply by way of the celiac trunk.
8. Nociceptive information from the foregut travels to cord levels T5-9 by way of the greater splanchnic nerves.
9. The gall bladder is an organ of the foregut.
10. Nociceptive information from the gall bladder is expected to travel to cord levels T5-9.
11. Referred pain from the gall bladder and liver may occur at and near the xiphoid process.
12. The potential space defined by the attachments of Scarpa's fascia has its superior extent at the level of the xiphoid process.
a. False: ends slightly inferior to the umbilicus
13. All borders of the superficial ring are defined by derivatives of the external oblique aponeurosis.
a. False: Anterior: EO aponeurosis (intercrural fibers)
i. Posterior: inguinal falx (conjoint tendon)
ii. Floor: lacunar ligament
iii. Roof: EO aponeurosis (medial crus)
14. The origin of the transversus abdominis muscle is from the lateral third of the inguinal ligament and the origin of the external oblique is from the lateral two-thirds of the inguinal ligament.
15. The inferior free edge of the transversus abdominis muscle passes superior to the deep ring.
a. True: makes the roof and posterior wall of deep inguinal ring
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