Anterior Abdominal Wall

Question 1

layers of the abdominal wall layers from superficial to deep (8)

Answer 1

skin
campers fascia (fatty SF)
scraps fascia (membranous SF)
3 layers of muscle 
transversals fascia 
exztraperitoneal fat 
parietal peritoneum
abdominal organs

Question 2

insertion of rectus abdominis

Answer 2

costal cartilages and diploid processes

Question 3

how do the fibers of rectus abdomens run

Answer 3

vertically, about 3x as wide superiorly than inferiorly

Question 4

origin of rectus abdominis

Answer 4

pubis

Question 5

rectus abdominis has - tendinous insertions into the — division of the rectus sheath

Answer 5

4

superficial

Question 6

Sensory innervation of skin over the anterior abdominal wall is provided by

Answer 6

ventral rami:
lower 5 intercostal nerves (T7-11),
subcostal nerve (T12),
iliohypo-gastric/ilioinguinal nerves (L1)

Question 7

These same nerves provide somatic motor innervation to the

Answer 7

anterior abdominal wall muscle

Question 8

Arteries run in the rectus sheath deep to the muscle

Answer 8

deep

Question 9

Lymph from skin above the umbilicus (including the back and upper limb) drains to

Answer 9

axillary nodes

Question 10

Lymph from skin below the umbilicus (including the back, pelvis, perineum, and lower limb) drains to

Answer 10

superficial inguinal nodes

Question 11

Movements of the trunk (3)

Answer 11

Flexion (pure) -bilateral
Lateral flexion -unilateral
Rotation (twisting) -unilateral

Question 12

Less obvious functions are ones that do not produce trunk movements, but are related to changes in intraabdominal pressure (5)

Answer 12

Stabilization of the trunk during strenuous physical effort (Valsalva’s maneuver)
Forceful expiration
Coughing and sneezing 
Urination and defecation
Labor and delivery

Question 13

what are the functions of the abdominal wall muscles? (2)

Answer 13

muscles decrease abdominal cavity volume/increase intaabdominal pressure
abdominal organs increase pressure in thorax and pelvis