Anterior abdominal wall

Question 1

Where do muscles fuse along the 8 pack?

Answer 1

centre line- Linea alba

Outline of the 6 pack-Linea Semilunaris

Question 2

What is the v line the location of?

Answer 2

Inguinal ligament

Question 3

What is the scientific name for the 8 pack?

Answer 3

RECTUS ABDOMINIS

Question 4

What are the attachments of the 8 pack?

Answer 4

one block of 4 on each side of the linea alba and each block has these attachments :

Superior attachments:

• xiphoid process
• costal cartilages 5,6, and 7

Inferior attachments:

• Pubic crest
• Pubic symphosis

Question 5

What is the benefit of having the 8 blocks of the Rectus abdominis muscle?

Answer 5

allows segmental contraction of the muscle and therefore greater control of the major activity of the muscle

Question 6

What is the major activity of the rectus abdominis?

Answer 6

Flexion of the trunk

Question 7

What forms the rectus sheath and what is enclosed by it

Answer 7

Is formed by the aponeuroses of the transversus abdominis and the internal and external oblique muscles. It contains the rectus abdominis and pyramidalis muscles

Question 8

What is in between the abs?

Answer 8

tendinous intersections

Question 9

Describe the collagen fibres of the aponeurosis?

Answer 9

the collagen fibres of the 2 layers are at right angles to eachother=gives more strength to the rectus sheath

Question 10

How does the posterior lower part of the rectus sheath differ to the upper
?

Answer 10

Follows a different structure-the lowest block of the rectus abdominis is not covered in rectus sheath only TRANSVERSALIS FASCIA becuase at this poin klnown as the ARCUATE LINE all the aponeurosis of the flank muscle pass anterior to the rectus abdominis, so the posterior rectus sheath consist only of transversalis fascia