Anterior Abdominal Wall

Question 1

The cutaneous nerve supply to anterior abdominal wall is derived from?

Answer 1

Anterior rami of
Lower 6 thoracic (lower 5 intercostal and subintercostal nerves) &
First lumbar (ileohypogastric and ileolingual) nerves

Question 2

Where is the dermatome of T7 located?
T10?
L1?

Answer 2

In the epigastrium
Above the xiphoid process

2. T10:
   In the umblicus
3. L1:
   Just above the inguinal ligament & pubis symphysis

Question 3

Give the cutaneous blood supply of anterior abdominal wall?
Midline
Flanks?

Answer 3

The skin near midline
By superior and inferior epigastric arteries

Skin near flanks
By branches of
intercostal,
lumbar and
deep circumflex arteries

Question 4

The cutaneous venous drainage of anterior abdominal wall?
Above and below?

Answer 4

Above
From lateral thoracic veins
Into axillary vein

Below
From superficial epigastric
& The Great saphenous vein
Into Femoral vein

Question 5

The cutaneous lymphatic drainage of anterior abdominal wall?
Above the umblicus?
Below the umblicus?

Answer 5

Above
Into anterior axillary lymph nodes

Below
Into superficial inguinal lymph nodes

Question 6

The scarpa’s fascia forms _______ in the perineum?

Answer 6

Colle’s fascia

Question 7

In the lower part of rectus sheath there may be a small muscle called?

Answer 7

Pyrimidalis

Question 8

What is cremaster muscle? Derived from?

Answer 8

The cremaster muscle is a thin layer of skeletal muscle found in the male reproductive system. It covers the spermatic cord and testes and plays a crucial role in regulating the temperature of the testes, which is essential for proper spermatogenesis (the production of sperm). The muscle contracts to pull the testes closer to the body in response to cold temperatures or during physical activity, helping to keep them warm. Conversely, it relaxes to allow the testes to hang further from the body in warmer conditions, helping to cool them down. This temperature regulation is vital for maintaining optimal conditions for sperm production and health.

From lower fibres of internal oblique