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SPINAL CORD LEVELS & FUNCTIONS

@stevencyrmd

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Why it worked

The post provides clear, concise, and visually organized information on a complex medical topic, making it easily digestible and shareable for a wide audience interested in health and anatomy.

Summary

This post details the functions and movements associated with different levels of the spinal cord, from the cervical to the sacral regions. It visually breaks down which nerve roots control specific actions like breathing, flexing the elbow, extending the wrist, and more.

Structure

1Title slide: Spinal Cord Levels & Functions
2Cervical spine levels and their associated movements/functions
3Lumbar spine levels and their associated movements/functions
4Sacral spine levels and their associated movements/functions
5Logo slide: SASPINE

Product placement

SASPINE (appears as a logo at the bottom right; removing it would not change what happens in the video)

On-screen text

SPINAL CORD LEVELS & FUNCTIONS Key levels linked to movement, sensation & function 01 C3-C5 Diaphragm • Breathing Phrenic nerve 02 C5 Elbow Flexion Biceps • Brachialis 03 C6 Wrist Extension Wrist extensors 04 C7 Elbow Extension Triceps 05 C8 Finger Flexion Finger flexors 06 T1 Finger Abduction Little-finger abductor 07 L2 Hip Flexion Hip flexors 08 L3 Knee Extension Quadriceps 09 L4 Ankle Dorsiflexion Tibialis anterior 10 L5 Great Toe Extension Extensor hallucis longus 11 S1 Plantarflexion Gastrocnemius • Soleus 12 S2-S4 Pelvic & Autonomic Function Bowel • Bladder • Sexual function CERVICAL LUMBAR SACRAL SASPINE

Original caption

C3, 4, 5 keep the diaphragm alive. That’s not just a med-school mnemonic. It’s why a high cervical injury can take your breath away. Every level of your spinal cord has a job: C5 — bend the elbow C6 — cock the wrist back C7 — straighten the arm C8 — close the fingers T1 — spread the fingers L2 — lift the hip L3 — kick the knee straight L4 — lift the foot L5 — lift the big toe S1 — point the foot down S2–S4 — bowel, bladder, and sexual function This is why a disc herniation, stenosis, or fracture at one level can change everything. And why a careful exam tells us exactly where the problem lives. Save this map. If you’ve ever been told “your MRI looks fine” but your exam doesn’t match — this is why the level matters. — Dr. Steven Cyr | Spine Surgeon #SpinalCord #Myotomes #SpineHealth #BackPain #NeckPain