Abdomen Muscles

Question 1

Rectus Abdominus:

Answer 1

Origin:
- Pubis Bone

Insertion:
- Xiphoid process
- Lower ribs

Function:
- Flex the vertebral column
- Stabilize the pelvis when walking

Question 2

External Oblique:

Answer 2

Origin:
- Outer surface of the ribs

Insertion:
- Linea Alba

Function:
- Flex the vertebral column
- Laterally flex the vertebral column
- Rotate the vertebral column

Question 3

Internal Oblique:

Answer 3

Origin:
- Lumbar fascia (on the back)
- Iliac crest

Insertion:
- Linea alba
- Lower ribs

Function: (SAME AS EO!)
- Flex the vertebral column
- Laterally flex the vertebral column
- Rotate the vertebral column

Question 4

Transversus Abdominus:

Answer 4

Origin: (SAME AS IO!)
- Lumbar Fascia (on the back)
- Iliac crest

Insertion:
- Linea alba

Function:
- Compress abdominal contents