Posterior Abdominal Wall, Pelvs, Perineum

Question 1

What are the 3 muscles of the Anterior Oblique Wall?

Answer 1

1. External Oblique Muscle
2. Internal Oblique Muscle
3. Transverse Abdominal Muscle

From outer to Inner

Question 2

What are the muscles of the Posterior Abdominal Wall?

Answer 2

• Psoas Major
• Quadratus Lumborum
• Transversus Abdominis
• Iliacus

Question 3

Name the nerves from superior to inferior

Answer 3

1. Subcostal - T12
2. Iliohypogastric - L1
3. Ilio-inguinal - L1
4. Lateral Cutaneous - L2 & L3
5. Femoral - L2 to L4
6. Genitofemoral (anterior to Psoas Major)

Question 4

What is the major muscle of the Posterior Abdominal Wall?

Answer 4

Psaos Major

Question 5

Which aorta does the abdominal aorta originate from?

Answer 5

Descending aorta

Question 6

What does the abdominal aorta divide into?

Answer 6

Right and left common iliac

Question 7

What are the 4 categories of the abdominal aorta?

Answer 7

1. Anterior branches
2. Unpaired branches
3. Paired branches
4. Median sacral

Question 8

What are the 5 paired branches of the abdominal aorta?

Answer 8

1. Phrenic
2. Middle suprarenal
3. Renal
4. Gonadal
5. 4 Lumbar arteries

Question 9

Where is the Inferior Vena Cava formed at?

Answer 9

L5

Question 10

Inferior Vena Cava is ____ of midline

Answer 10

right

Question 11

What does the Inferior Vena Cava divide into?

Answer 11

Common iliac veins

Question 12

Where does the Inferior Vena Cava passes upwards to?

Answer 12

Passes upwards to right of aorta

Question 12

Where does the Inferior Vena Cava pierce through?

Answer 12

Right horn of central tendon

Attached to margins of central tendon

Question 13

Where does the Inferior Vena Cava end?

Answer 13

Postero-Inferior angle of right atrium

Question 14

What veins does Inferior Vena Cava give rise to?

Answer 14

• Right gonadal vein
• Right and left renal veins
• Right suprarenal vein
• Median sacral
• Hepatic veins

Question 15

Where does the Inferior Vena Cava lie?

Answer 15

Posteriorly lies on bodies of lumbar vertebra and right sympathetic trunk

Question 16

What forms the pelvic girdle?

Answer 16

Hip bone, sacrum, coccyx, pubis, ischium

Question 17

What is the junction where the hip bone, pubis and ischium are fused?

Answer 17

Acetabulum

Question 18

Muscles of pelvic floor

Answer 18

• Levator ani
• Coccygeus

Question 19

Where is the perineum situated?

Answer 19

In the pelvis below the pelvic diaphragm

Question 20

What organs are located in the perineum?

Answer 20

External genital organs

Question 21

Peritoneum is a thin serous membrane that lines the ____ cavity which protects and supports the internal organs

Answer 21

Peritoneum is a thin serous membrane that lines the abdominal cavity which protects and supports the internal organs

Question 22

What is the pouch in the male pelvic cavity called?

Answer 22

Recto-vesical pouch

Question 23

What are the pouches in the female pelvic cavity called?

Answer 23

1. Rectouterine pouch (deeper)
2. Vesicouterine pouch (shallow)