"innervation: anterior rami of C2-C6 spinal nerves"
"action: bilaterally it acts as a weak flexor of the head and cervical vertebrae alone; unilateral action serves to rotate and tilt the cervical vertebrae and head to the ipsilateral side"
"The longus colli muscle is a prevertebral muscle of the neck that is innervated by the anterior rami of C2-C6 from the cervical plexus. Longus colli is a weak flexor of the cervical spine, and when contracting unilaterally, it tilts and rotates the cervical spine to the ipsilateral side. Longus colli consists of upper (superior oblique), lower (inferior oblique) and central (vertical or intermediate) fibres."
"upper fibres: anterior tubercles of the transverse processes of C3-C5"
"lower fibres: anterior surface of vertebral bodies of T1-T3 vertebrae"
"central fibres: anterior surface of vertebral bodies of C2-C4 vertebrae"
"innervation: anterior rami of C2-C6 spinal nerves"
"superior oblique portion: originates from the anterior tubercles of the transverse processes of C3-C5 vertebrae"
"inferior oblique portion: originates from the anterior surfaces of the vertebral bodies of T1-T3 vertebrae"
"The longus colli muscle has separate insertion sites for the superior oblique, intermediate and inferior oblique parts of the muscle. The superior oblique fibres insert into the tubercle of the anterior arch of the atlas. The fibres of the vertical portion of the muscle travel directly upwards to insert on to the anterior surfaces of the vertebral bodies of C2-C4. Finally, the inferior oblique part of the longus colli muscle ascends laterally attaching on to the anterior tubercles of transverse processes of C5 and C6 cervical vertebrae."
"Tornwaldt cyst: It can be found anterior to the longus colli muscles"
Expected headings
"Origin"
"Insertion"
"Action"
"action: bilaterally it acts as a weak flexor of the head and cervical vertebrae alone; unilateral action serves to rotate and tilt the cervical vertebrae and head to the ipsilateral side"
"The longus colli muscle has separate insertion sites for the superior oblique, intermediate and inferior oblique parts of the muscle. The superior oblique fibres insert into the tubercle of the anterior arch of the atlas. The fibres of the vertical portion of the muscle travel directly upwards to insert on to the anterior surfaces of the vertebral bodies of C2-C4. Finally, the inferior oblique part of the longus colli muscle ascends laterally attaching on to the anterior tubercles of transverse processes of C5 and C6 cervical vertebrae."
"The lateral border of the inferior oblique portion of the longus colli muscle meets the medial border of the scalenus anterior (anterior scalene) to form a pyramidal space whose apex meets over the carotid tubercle (or tubercle of Chassaignac). The carotid tubercle is the anterior tubercle of the transverse process of the sixth cervical (C6) vertebra and is an important landmark in identifying the carotid artery, which sits directly anterior to it. The floor of this pyramid is formed by the first part of the subclavian artery and within this pyramidal space lies the vertebral artery and the cervical sympathetic trunk (superior cervical ganglion, middle cervical ganglion and inferior cervical / stellate ganglion). In dissection of the neck, it should be noted that the cervical sympathetic chain lies on the lateral aspect of the longus colli muscle at the level of C6."