Intervertebral Disk of Seventh Cervical Vertebra (C7–T1) (Discus intervertebralis C7–T1)
Educational content only — not medical advice.
Anatomy
The intervertebral disk of the seventh cervical vertebra (C7–T1) forms the structural transition between the mobile cervical lordosis and the rigid thoracic kyphosis. Interposed between the vertebra prominens (C7) and the first thoracic vertebra (T1), it absorbs high transitional shear and bending stresses.
Clinical notes
Herniation at C7–T1 compresses the C8 nerve root, presenting with hand intrinsic muscle weakness (weak finger abduction and adduction) and sensory deficits along the medial forearm and little finger.
Related structures
Educational references
FAQ
What is the role of the Intervertebral Disk of Seventh Cervical Vertebra (C7–T1)?
The intervertebral disk of the seventh cervical vertebra (C7–T1) forms the structural transition between the mobile cervical lordosis and the rigid thoracic kyphosis. Interposed between the vertebra prominens (C7) and the first thoracic vertebra (T1), it absorbs high transitional shear and bending stresses.
Why is the Intervertebral Disk of Seventh Cervical Vertebra (C7–T1) clinically important?
Herniation at C7–T1 compresses the C8 nerve root, presenting with hand intrinsic muscle weakness (weak finger abduction and adduction) and sensory deficits along the medial forearm and little finger.
Source & license
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