- A: Supports abdominal wall
- O: Iliac crest
- I: Xiphoid
- A: Supports abdominal wall
- O: 5-12 ribs
- I: Xiphoid
- A: Aids in twisting and supporting abdominal wall
- O: Iliac crest
- I: Xiphoid
- A: Flexes waist as in sit-ups
- O: Pubis
- I: Xiphoid process, costal cartilages 5-7
- A: Compresses cheek; draws corner of mouth laterally; also a muscle of mastication
- O: Molar region of maxilla and mandible
- I: Orbicularis oris
- A: Prime mover of jaw closure; elevates mandible
- O: Zygomatic bone
- I: Mandible
- A: Compress/ expand nares
- O: Maxilla
- I: Nasal cartilage
AOI Facial and abdominal muscles