1. Back Muscles
1.1. Extrinsic
1.1.1. Trapezius
1.1.1.1. Spinal Accessory Nerve
1.1.2. Latissimus Dorsi
1.1.2.1. Intercostal Nerves
1.1.3. Rhomboids
1.1.3.1. Minor
1.1.3.2. Major
1.1.3.3. Thoracodorsal Nerve
1.1.4. Levator Scapulae
1.1.4.1. Thoracodorsal Nerve
1.1.5. Serratus
1.1.5.1. Posterior Inferior
1.1.5.2. Posterior Superior
1.1.5.3. Intercostal Nerves
1.2. Intrinsic
1.2.1. Splenius
1.2.1.1. Cervicis
1.2.1.2. Capitis
1.2.2. Erector Spinae
1.2.2.1. Iliocostalis
1.2.2.1.1. Lumborum
1.2.2.1.2. Thoracis
1.2.2.1.3. Cervicis
1.2.2.2. Longissimus
1.2.2.2.1. Lumborum
1.2.2.2.2. Thoracis
1.2.2.2.3. Cervicis
1.2.2.2.4. Capitis
1.2.2.3. Spinalis
1.2.2.3.1. Thoracis
1.2.2.3.2. Cervicis
1.2.2.3.3. Capitis
1.2.3. Transversopinalis
1.2.3.1. Rotatores
1.2.3.2. Multifidus
1.2.3.3. Semispinalis
1.2.4. Deep Segmental
1.2.4.1. Levator Costarum
1.2.4.2. intertransversarii
1.2.4.3. interspinalis
1.2.5. Mainly for stability and proprioception
2. blood supply
2.1. Arteries
2.1.1. Segmental Arteries
2.1.1.1. Dorsal Rami Artery
2.1.1.1.1. Spinal Artery
2.1.1.2. Ventral Rami Artery
2.2. Veins
2.2.1. Basivertebral
2.2.2. Anterior External Vertebral Plexus
2.2.3. Anterior internal plexus
2.2.4. Posterior Internal Plexus
2.2.5. Posterior External Vertebral Plexus
3. Vertebral Column
3.1. Cervical
3.1.1. Rotation
3.1.1.1. Odontoid Process
3.1.1.1.1. Articulates with C1 to allow Rotation
3.1.1.2. Transverse Ligament
3.1.1.3. C1/C2
3.1.2. Flexion
3.1.2.1. interarticular facet joints
3.2. Thoracic
3.2.1. overlapping spinous processes
3.2.2. larger spinous processes
3.2.3. dorsal facing transverse processes
3.2.3.1. Attachment Point for Costal Ribs
3.2.4. larger vertebral body
3.2.5. mostly for lateral flexion
3.3. Lumbar
3.3.1. Largest vertebral body
3.3.2. lateral/flexion
3.3.3. extension
3.3.4. Mammillary Processes
3.3.4.1. Attachment for Mutifidi
3.4. Sacrum
3.4.1. 5 fused bones
3.4.2. auricular surfaces
3.5. coccyx
3.5.1. 4 fused bones
3.6. IV Discs except C1/C2 Level
4. Nerves
4.1. CNS
4.1.1. Cranial Nerves
4.1.2. Nuclei
4.2. PNS
4.2.1. SNS
4.2.1.1. Fight or Flight
4.2.1.2. CN 3/4/5 and S2/3/4
4.2.1.3. Sympathetic Trunk
4.2.1.4. Pre-Post Ganglionic Synapse
4.2.1.5. Paravertebral vs Prevertebral
4.2.1.6. Splanchnic Nerves
4.2.1.6.1. Cardiopulmonary
4.2.1.6.2. abdominopelvic
4.2.2. PSNS
4.2.2.1. Rest and Digest