Anatomy Review - DrBradCole.com · Anatomy Review Cervical roots C1-3. Cervical Plexus CNXII, C1 to...
Transcript of Anatomy Review - DrBradCole.com · Anatomy Review Cervical roots C1-3. Cervical Plexus CNXII, C1 to...
Anatomy Review
Cervical roots C1-3
Cervical Plexus
CNXII, C1 to C5
Motor
Supplies mainly neck
muscles and sensory of
the head and neck
region Note C3 to C5 -
Phrenic nerve
Lesions
Neck and upper back
muscle weakness and
atrophy, Hiccups,
breathing difficulty
Cervical Roots Simplified C5, C6, C7
Lumbar Roots Simplified L4, L5, S1
Anatomy Review
Vascular system in the head and neck
Arterial Blood Supply
Anterior spinal artery
Branch of vertebral
Descends
Segmental supply
Vertebral
Thyrocervical
Costovertebral
Aorta (thoracic, lumbar)
Internal Iliac
Posterior spinal artery
Vertebral
Occasionally PICA
Descends laterally along dorsal roots
Segmental arteries
Enter via IVF
3 branches
Anterior
Posterior
Neurospinal
• Anterior, Posterior
Venous Drainage
Three main plexus
Internal plexus
In the canal itself
Vertebral Plexus
In the epidural space
Irregular venous plexus
On the cord itself
All are valveless
3 posterior vessels
3 anterior vessels