Anterior Abdominal Wall

Question 1

The anterior abdominal wall consists of how many layers?

Answer 1

6

Question 2

What are the 6 layers from superficial to deep?

Answer 2

Skin
Subcutaneous tissue
Muscles
transversalis fascia
extraperitoneal fat
parietal peritoneum

Question 3

The subcutaneous layer is divided into what two layers?

Answer 3

Fatty layer (Camper)
Membranous layer (Scarpa)

Question 4

The membranous layer of the subcutaneous only exists where? How is that different than the fatty layer?

Answer 4

Lower abdomen

Fatty is continuous with the fatty later of the rest of the body

Question 5

The fatty layer continues medial and inferiorly to continue with __________ in the scrotum and ________ around the penis.

Answer 5

Colles fascia

Buck’s fascia

Question 6

The fatty layer is attached to the base of the __________.

Answer 6

Urogenital diaphragm

Question 7

In the regions lateral to the linea semilunaris (lateral edge of rectus sheath) there are which three muscles?

Answer 7

External and internal oblique

Transversus abdominis

Question 8

In the region medial to the lineal semilunaris, there are three different structures:

Answer 8

Anterior and posterior layer of the rectus sheath

Rectum abdominis muscle in middle

Question 9

The anterior abdominal wall is innervated by which nerves?

Answer 9

Lower 5 intercostal nerves (T7-11)
Subtotal nerve (T12)
iliohypogastric and ilioinguinal nerve (L1)