This document discusses 7 muscles of the neck. It describes the origin, insertion, nerve supply and action of 3 muscles: the vertebral muscle, longus colli muscle, and iliocostalis muscle. The vertebral muscle originates on cervical vertebrae and inserts on the occipital bone. It is innervated by the suboccipital nerve and flexes the head. The longus colli originates on the anterior atlas and inserts on the occipital bone, flexing the head. The iliocostalis originates along the vertebral column and sacrum, extending and laterally flexing the vertebral column.

2.  Vertebral
artery
 7 Muscles
Joints of Neck

4. 1.
2.
3.
4.

6. Middle part
Upper 3
Cervical
&
Lower 3
Thoracic
Vertebra
Upper part
Ant% Tubercle
Of Transverse
Process Of
C-3
C-4
C-5
Lower part
Upper 2 -3
Thoracic
Vertebra

7. Middle Part
Bodies Of The
C-3
C-4 Vertebrae
Upper Part
Anterior Tubercle Of
Atlas

11. ORIGIN INSERTION
 Anterior Tubercle Of
The Transverse
Process Of The
 C-3
 C-4
 C-5
 C-6
Vertebrae
 Inferior Surface Of
The Basilar Part Of
The Occipital Bone

16.  Origin
 Anterior Surface Of
Lateral Mass Of
Atlas
 Root Of Transverse
Process Of Atlas
 Insertion
 Inferior Surface Of
The Jugular Process
Of Occipital Bone

17.  NERVE SUPPLY
 VENTRAL RAMUS OF
THE C-1
(SUBOCCIPITAL
NERVE)
 AND MAY C-2
 Action
 Flexes The Head

20. NERVE SUPPLY ACTION

22.  ORIGIN
 Spinous Process
 Transverse Process
 Sacrum
 Ilium
 Ribs Near The Vertebrae
 on the spines of the
last four thoracic vertebrae

23. Posterior Branch Of
Spinal Nerve
 ACTION
 Extension Of
Vertibral Coloumn
 Lateral Flexion