Back عضلة طولى Arabic Múscul llarguíssim Catalan Longissimus Danish Musculus longissimus German Músculo longísimo Spanish ماهیچه درازتر FA Muscle longissimus French Musculus longissimus dorsi Hungarian Muscolo lunghissimo Italian 最長筋 Japanese
 | This article needs additional citations for verification. (January 2016) |
| Longissimus | |
|---|---|
 Deep muscles of the back – longissimus capitis visible at top right, longisimus cervicis visible at center upper right, and longissimus dorsi visible at center right | |
| Details | |
| Origin | Transverse process |
| Insertion | Transverse process |
| Artery | Lateral sacral artery |
| Nerve | Posterior branch of spinal nerve |
| Actions | Laterally: Flex the head and neck to the same side. Bilaterally: Extend the vertebral column. |
| Antagonist | Rectus abdominis muscle |
| Identifiers | |
| Latin | musculus longissimus |
| TA98 | A04.3.02.010 |
| TA2 | 2262 |
| FMA | 77178 |
| Anatomical terms of muscle | |
The longissimus (Latin: the longest one) is the muscle lateral to the semispinalis muscles. It is the longest subdivision of the erector spinae muscles that extends forward into the transverse processes of the posterior cervical vertebrae.