Posterior Abdominal Wall, Pelvs, Perineum Flashcards
What are the 3 muscles of the Anterior Oblique Wall?
- External Oblique Muscle
- Internal Oblique Muscle
- Transverse Abdominal Muscle
From outer to Inner
What are the muscles of the Posterior Abdominal Wall?
- Psoas Major
- Quadratus Lumborum
- Transversus Abdominis
- Iliacus
Name the nerves from superior to inferior
- Subcostal - T12
- Iliohypogastric - L1
- Ilio-inguinal - L1
- Lateral Cutaneous - L2 & L3
- Femoral - L2 to L4
- Genitofemoral (anterior to Psoas Major)
What is the major muscle of the Posterior Abdominal Wall?
Psaos Major
Which aorta does the abdominal aorta originate from?
Descending aorta
What does the abdominal aorta divide into?
Right and left common iliac
What are the 4 categories of the abdominal aorta?
- Anterior branches
- Unpaired branches
- Paired branches
- Median sacral
What are the 5 paired branches of the abdominal aorta?
- Phrenic
- Middle suprarenal
- Renal
- Gonadal
- 4 Lumbar arteries
Where is the Inferior Vena Cava formed at?
L5
Inferior Vena Cava is ____ of midline
right
What does the Inferior Vena Cava divide into?
Common iliac veins
Where does the Inferior Vena Cava passes upwards to?
Passes upwards to right of aorta
Where does the Inferior Vena Cava pierce through?
Right horn of central tendon
Attached to margins of central tendon
Where does the Inferior Vena Cava end?
Postero-Inferior angle of right atrium
What veins does Inferior Vena Cava give rise to?
- Right gonadal vein
- Right and left renal veins
- Right suprarenal vein
- Median sacral
- Hepatic veins
Where does the Inferior Vena Cava lie?
Posteriorly lies on bodies of lumbar vertebra and right sympathetic trunk
What forms the pelvic girdle?
Hip bone, sacrum, coccyx, pubis, ischium
What is the junction where the hip bone, pubis and ischium are fused?
Acetabulum
Muscles of pelvic floor
- Levator ani
- Coccygeus
Where is the perineum situated?
In the pelvis below the pelvic diaphragm
What organs are located in the perineum?
External genital organs
Peritoneum is a thin serous membrane that lines the ____ cavity which protects and supports the internal organs
Peritoneum is a thin serous membrane that lines the abdominal cavity which protects and supports the internal organs
What is the pouch in the male pelvic cavity called?
Recto-vesical pouch
What are the pouches in the female pelvic cavity called?
- Rectouterine pouch (deeper)
- Vesicouterine pouch (shallow)
