Muscles Of The Anterolateral Abdominal Wall

Question 1

External Oblique

Answer 1

O: Lower 8 ribs

I: Aponeurosis to xiphoid process, linea alba, pubic crest, pubic tubercle, and ant 1/2 of iliac crest

Question 2

Internal Oblique

Answer 2

O: Thoracolumbar fascia, ant2/3 of iliac crest, lat 2/3 of inguinal lig

I: Ribs 10-12 and aponeurosis to linea alba, xiphoid process and symphysis pubis

Question 3

Transverse Abdominis

Answer 3

O: Inner surface of lower 6 costal cartilages, thoracolumbar fascia, ant 2/3 of iliac crest, and lat 1/3 of inguinal lig

I: Aponeurosis to xiphoid process, linea alba, and symphysis pubis

Question 4

Rectus Abdominis

Answer 4

O: Pubic crest and pubic symphysis

I: Outer surface of xiphoid process and 5th-7th costal cartilages

Question 5

Pyramidalis

Answer 5

O: Ant surface of pubis and pubic symphysis

I: Linea alba

Question 6

Diaphragm

Answer 6

O: Xiphoid process, lower 6 ribs and costal cartilages, and L1-L3

I: Central tendon of diaphragm at level of xiphisternal jt

Question 7

External Intercostals

Answer 7

O: Inf border of rib above

I: Sup border of rib below

Question 8

Internal intercostals

Answer 8

O: Sup border of rib below

I: Inf border of rib above

Question 9

Innermost Intercostals

Answer 9

O: Adjacent ribs

I: Adjacent ribs