𝟏𝟏. 𝐏𝐨𝐬𝐭𝐞𝐫𝐢𝐨𝐫 𝐚𝐛𝐝𝐨𝐦𝐢𝐧𝐚𝐥 𝐰𝐚𝐥𝐥

This video describes the anatomy of the posterior abdominal wall muscles, vessels, and nerves with applied anatomy (including MCQ, practical, and interactive questions).

𝐂𝐡𝐚𝐩𝐭𝐞𝐫𝐬 (𝐭𝐢𝐦𝐞𝐬𝐭𝐚𝐦𝐩𝐬) الفصول (الطوابع الزمنية)
00:00 - Intro (مقدمة)
00:22 - Content (المحتوى)
00:36 - Muscles
02:30 - Psoas major muscle
11:30 - Psoas minor muscle
15:24 - Iliacus muscle
22:26 - Quadratus lumborum muscle
27:53 - MCQ
28:40 - Vessels
30:31 - Abdominal aorta
38:12 - Common iliac arteries
39:48 - MCQ
40:50 - Inferior vena cava
42:57 - Lumbar plexus
53:29 - Sympathetic trunk
55:51 - Practical questions
57:28 - Interactive questions

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐩𝐬𝐨𝐚𝐬 (𝐨𝐫 𝐢𝐥𝐢𝐨𝐩𝐬𝐨𝐚𝐬) 𝐚𝐛𝐬𝐜𝐞𝐬𝐬?
It is a collection of pus in the iliopsoas muscle compartment. It may arise via contiguous spread from adjacent structures or by the hematogenous route from a distant site.

𝐖𝐡𝐚𝐭 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐜𝐚𝐮𝐬𝐞𝐬 𝐨𝐟 𝐩𝐬𝐨𝐚𝐬 𝐚𝐛𝐬𝐜𝐞𝐬𝐬?
Primary psoas abscess occurs most commonly in patients with a history of diabetes, injection drug use, alcoholism, AIDS, renal failure, hematologic malignancy, immunosuppression, or malnutrition. Additional risk factors include age under 20 years, males (3:1 predominance), and low socioeconomic status.

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐚 𝐩𝐬𝐨𝐚𝐬 𝐚𝐛𝐬𝐜𝐞𝐬𝐬 𝐟𝐫𝐨𝐦 𝐭𝐮𝐛𝐞𝐫𝐜𝐮𝐥𝐨𝐬𝐢𝐬 (𝐓𝐁)?
Psoas abscess is a rare manifestation of extrapulmonary TB, usually resulting from contiguous spread from a spinal source. Spinal column stability is an important consideration in patients with spinal TB.

𝐌𝐂𝐐:
1. Which structure passes posterior to the abdominal aorta?
A. Left renal vein
B. Lumber veins
C. Pancreas
D. Splenic vein

2. Which of the following is the anatomical site of the genitofemoral nerve in relation to psoas major?
A. Anterior
B. Medial
C. Lateral
D. Posterior

3. A 28-year-old male suffers a tear to the psoas major muscle during a football game. A scar, which formed on the medial part of the belly of the muscle, involved an adjacent nerve, immediately medial to the muscle. The nerve is called the:
A. Femoral
B. Genitofemoral
C. Iliohypogastric
D. Ilioinguinal
E. Obturator

4. The lumbar plexus nerves are arranged around specific muscles of the posterior abdominal wall. Which of these nerves lies immediately medial to the psoas major muscle?
A. Femoral
B. Genitofemoral
C. Iliolingual
D. Obturator


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