ventral root
- noun
- /ˈvɛntrəl ruːt/
- Specialized
- Motor signals travel through the ventral root to stimulate muscle contractions in the limbs.
Examples
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He also tried cutting the ventral roots or the dorsal roots.
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It just means muscles innervated by a single ventral root, OK?
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The surgeon carefully examined the ventral root to identify the source of the nerve damage.
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In a spinal cord injury, the ventral root may be compromised, affecting movement control.
Synonyms
A nerve branch at the front of the spinal cord that carries signals to muscles
Surface Forms
Morphology
The adjective 'ventral' (front) combined with 'root' (source/branch) gives a clear cue that this is a front-facing branch or origin, so learners can infer an anatomical location. However, the specific technical sense that it is a spinal nerve branch carrying motor fibers is specialized and not fully predictable from the everyday senses of the words, making the expression only partially transparent to a B1 learner.
Etymology
Ventral root gives a simple picture: ventral means 'front' and root looks like a small branch coming out of the spinal cord. Because this 'root' carries the signals that make muscles move, the name tells us it is the front branch that sends 'movement' messages from the spine to the muscles.