Abdomen 1

Front 1

Origin of Transversus Abdominis

Back 1

1- Thoracolumbar fascia.
2- Medial lip of the iliac crest.
3- Lateral 1/3 of the inguinal ligament.
4- Costal cartilages of the lower 6 ribs.

Front 2

Insertion of the Transversus Abdominis

Back 2

1- Aponeurosis into the linea alba.
2- Pectineal line.
3- Pubic crest.

Front 3

Innervation of the Transversus Abdominis

Back 3

Anterior rami of lower 6 thoracic spinal nerves & L1

Front 4

Function of the Transversus Abdominis

Back 4

Compress Abdominal Content

Front 5

Origin of External Oblique

Back 5

Muscular slips from the lower 8 ribs

Front 6

Insertion of the external oblique

Back 6

1- Aponeurosis ending in linea alba.
2- Outer lip of the iliac crest.

Front 7

Innervation of the External Oblique

Back 7

Anterior rami of lower 6 thoracic spinal nerves.

Front 8

Function of the external oblique

Back 8

1- Compress abdominal contents.
2- Both muscles flex trunk.
3- Each muscle pulls the trunk to its side, turning the anterior part of the abdomen to the other side.

Front 9

Origin of the internal oblique

Back 9

1- Thoracolumbar fascia.
2- Iliac crest between the insertion of the external oblique and the origin of the transversus abdominis.
3- Lateral 2/3 of the inguinal ligament.

Front 10

Insertion of the internal oblique.

Back 10

1- Inferior border of lower 3-4 ribs.
2- Pectineal line.
3- Pubic crest.
4- Aponeurosis ending in the linea alba.

Front 11

Innervation of the internal oblique

Back 11

Anterior rami of lower 6 thoracis spinal nerves and L1

Front 12

Function of the internal oblique

Back 12

1- Compress abdominal contents.
2- both muscles bend the trunk.
3- Each muscle can bend the the trunk to its side, turning the anterior part of the abdomen to the same side.

Front 13

Origin of the Rectus Abdominis

Back 13

1- Pubic crest.
2- Pubic tubercle.
3- Pubic symphysis.

Front 14

Insertion of the Rectus Abdominis

Back 14

1- Xiphoid process.
2- Costal Cartilages of ribs from V to VII.

Front 15

Innervation of the Rectus Abdominis

Back 15

Anterior rami of lower 7 thoracic spinal nerves

Front 16

Function of the rectus abdominis

Back 16

1- Compress abdominal contents.
2- Flex the vertebral column.
3- Tense the abdominal wall.

Front 17

Origin of Pyramidalis

Back 17

1- Front of Pubis
2- Pubic Tubercle

Front 18

Insertion of Pyramidalis

Back 18

Into linea alba

Front 19

Innervation of Pyramidalis

Back 19

Anterior Ramus of T12

Front 20

Function of Pyramidalis

Back 20

Tenses linea alba