anterior root

9.3

A nerve branch at the front of the spinal cord that carries signals to muscles

noun
/ænˈtɪr.i.ər ruːt/

Specialized

: raíz anterior

The function of the anterior root is to transmit motor signals from the spinal cord to the muscles.

Examples

Damage to the anterior root can result in the loss of voluntary muscle movement.
Each spinal nerve has an anterior root.
During surgery, the surgeon identified the anterior root to avoid nerve injury.
The anterior root carries motor signals.
The surgeon carefully preserved the anterior root during the operation to ensure the patient's motor functions remained intact.
Damage to the anterior root can lead to difficulties in moving the affected limbs.
The anterior root plays a crucial role in connecting the spinal cord to the muscles, allowing for voluntary movement.

Synonyms

ventral root

vsanterior root

Specialized

7.4

The front branch of a spinal nerve that sends movement signals to muscles

carries motor fibers away from the spinal cord without specifying muscles

Antonyms

posterior root

Specialized

9.5

A group of nerves at the back of the spine that carries feeling from the body to the spinal cord

Surface Forms

anterior root singular

anterior roots plural

Morphology

anterior + root

The compound is compositionally built from 'anterior' (toward the front) + 'root' (a projecting/base part), so its basic meaning — the front-facing/root part of a structure — is directly inferable. Although the full anatomical detail (motor fibers, spinal nerve context) is technical, a B1 learner who knows both constituents can reasonably understand it as the ‘front root’ of the spinal cord.

Etymology

Anterior root uses the words anterior and root; anterior means 'front' and root is like a plant root growing from the spinal cord. That's why an anterior root is the nerve root that carries the messages that tell muscles to move away from the spinal cord.