prevertebral muscles
TRANSCRIPT
PREVERTEBRAL MUSCLESSCALENOVERTEBRAL TRIANGLECERVICAL SYMPATHETIC CHAIN
Dr.VANI.P.C
ASSISTANT PROFESSOR
DEPARTMENT OF ANATOMY
1. Longus Colli
2. Longus Capitis
3. Rectus Capitis Anterior
4. Rectus Capitis Posterior
PREVERTEBRAL MUSCLES
Upper part
Anterior tubercles of transverse process of C3-C5 vertebrae
Middle part
Anterior surface of bodies of C5-C7 & T1-T3 vertebrae
Lower part
Anterior surface of bodies of T1—T3 vertebrae
LONGUS COLLI - ORIGIN
LONGUS COLLI - INSERTION
Upper part
Anterior tubercles ofAtlas
Middle part
Anterior surface of bodies of C2-C4vertebrae
Lower part
Anterior tubercle of transverse process of C5-C6 vertebrae
ORIGIN
Anterior tubercles of transverse process of C3-C6 vertebrae
INSERTION
Inferior surface of basiocciputon either side of pharyngeal tubercle
LONGUS CAPITIS
ORIGIN
Anterior Surface Of Lateral Mass Of Atlas
Root Of Transverse Process Of Atlas
INSERTION
Inferior Surface Of the basi-occiput infront of the Occipital condyles
RECTUS CAPITIS ANTERIOR
ORIGIN
Upper Surface Of Transverse Process Of Atlas
INSERTION
Inferior Surface Of the Jugular process Of Occipital Bone
RECTUS CAPITIS LATERALIS
ORIGIN
Cervical vertebrae-anterior tubercle C3 to C6
INSERTION
Scalene tubercle – First rib
SCALENE ANTERIOR
ORIGIN
Cervical vertebrae-Posterior tubercle C4 to C6
INSERTION
Outer surface of second rib
SCALENE POSTERIOR
SCALENOVERTEBRAL TRIANGLE
CONTENTS
First part of vertebral artery
Cervical symphathetic chain-middle & inferior cervical ganglion
Ansa subclavia
SCALENOVERTEBRAL TRIANGLE
STRUCTURES IN FRONT
Inferior thyroid artery
Thoracic duct on left side only
1. No white rami communicantes
2. Grey rami communicantes to each 8 cervical nerves
3. ORIGIN: Lateral horn cells of T1-T5
CERVICAL SYMPATHETIC CHAIN
SUPERIOR CERVICAL GANGLIAInfront of C2&C3 vertebrae
Branches:1. Gray rami communicantes: to
Lower 4 cranial & upper 4 cervical nerves
2. Visceral: Laryngo-pharyngeal & cardiac
3. Vascular: internal & external carotid plexus
SUPERIOR CERVICAL GANGLIA
Branches:
1. External petrosal nerve
2. Deep petrosal nerve
3. Communicating branch to ciliary ganglion
4. Nervus conarii
MIDDLE CERVICAL GANGLIAInfront of C6 vertebrae
Branches:1. Gray rami communicantes: to upper C5
& C6 nerves
2. Vascular: inferior thyroid plexus & ansasubclavia (it forms a loop around subclavian artery then joins the inferior ganglion
3. Visceral: tracheal, oesophageal & cardiac
INFERIOR CERVICAL GANGLIAInfront of neck of first rib
Stellate ganglion
Branches:1. Gray rami communicantes: to C7 & C8
nerves
2. Vascular: vertebral and subclavian plexus
3. Visceral: cardiac