Muscle Name: Obliques (Side Abs)

Medical Name:

• External Obliques
• Internal Obliques

Other Names:

• Side Abs
• Oblique Abdominals

External Obliques

Movement:

• Contralateral rotation of the torso
  • Rotating the torso to the opposite side
• Lateral flexion of the torso
  • Bending the torso to the side
• Flexion of the spine
  • Bending the torso forward
• Compression of the abdominal contents
  • Assisting in forced exhalation, childbirth, and defecation

Attachment:

• Origin:
  • External surfaces of ribs 5-12
• Insertion:
  • Linea alba
  • Pubic tubercle
  • Anterior half of the iliac crest

Related Muscles:

• Internal Obliques
• Rectus Abdominis
• Transversus Abdominis
• Latissimus Dorsi

Internal Obliques

Movement:

• Ipsilateral rotation of the torso
  • Rotating the torso to the same side
• Lateral flexion of the torso
  • Bending the torso to the side
• Flexion of the spine
  • Bending the torso forward
• Compression of the abdominal contents
  • Assisting in forced exhalation, childbirth, and defecation

Attachment:

• Origin:
  • Thoracolumbar fascia
  • Anterior two-thirds of the iliac crest
  • Inguinal ligament
• Insertion:
  • Inferior borders of ribs 10-12
  • Linea alba
  • Pubic crest

Related Muscles:

• External Obliques
• Rectus Abdominis
• Transversus Abdominis
• Quadratus Lumborum

EXERCISES

COMMUNITY