C5-C6: The Powerhouse (and Pain Point) of the Neck

The C5-C6 spinal segment is a fascinating anatomical and physiological structure, playing a key role in neck movement and neural functions. It is one of the most mobile areas in the cervical spine, contributing significantly to flexion and extension. This range of motion makes it essential for everyday tasks, like turning the head or nodding. However, its high mobility also exposes it to increased wear and tear, making it a common site for degenerative changes, including cervical spondylosis and herniated discs

Another unique aspect of the C5-C6 segment is its connection to the C6 nerve root, which controls important motor and sensory functions. This nerve supplies the biceps, enabling elbow flexion, and the wrist extensors, allowing hand movements like gripping. Compression or irritation of the C6 nerve can result in weakness in these muscles, along with tingling or numbness in the thumb and index finger. This makes the C5-C6 segment one of the most clinically significant regions in the cervical spine, as even minor issues can disrupt crucial functions.

The C5-C6 region also endures mechanical stress due to its position as a transition zone between the stable lower cervical spine and the highly mobile upper cervical spine. Over time, this stress can cause disc degeneration, leading to nerve root compression and cervical radiculopathy. Additionally, this segment’s proximity to the vertebral artery, a major blood vessel supplying the brain, highlights its vulnerability. Rare but severe cases of degeneration or trauma at C5-C6 can impair blood flow, potentially causing symptoms like dizziness or vertigo.

At Human Repair™ , we train you in Proper posture, help you perform targeted strengthening exercises, and early intervention for symptoms can prevent issues. For those already experiencing problems, manual therapy meaning mobilization of neuro-musculo skeletal structures, can alleviate pain, restore mobility, and improve nerve function, ensuring this critical segment stays in optimal shape.