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Glite Dictionary
precentral gyrus

precentral gyrus

8.4
A fold at the front of the brain that controls movements you make on purpose
  • noun
  • /ˌpriːˈsɛntrəl ˈɡaɪrəs/
  • Specialized
translation icon : giro precentral
  • The precentral gyrus is crucial for controlling voluntary movements in the body.

Examples

  • Lesions in the precentral gyrus can lead to difficulties in movement and coordination.

  • And we always find these largest parameter cells, the largest cells in the neocortex, located in the precentral gyrus, the motor cortex.

  • Scientists discovered that the precentral gyrus is where the brain processes motor commands.

Surface Forms

precentral gyrus singular
precentral gyri plural

Morphology

precentral + gyrus

The compound is literally compositional: 'precentral' means 'located before the central (sulcus)' and 'gyrus' is a brain fold, so a learner who knows both constituents can infer it refers to the fold anterior to the central sulcus. While detailed functional information (primary motor cortex) is specialized, the spatial/anatomical relation is directly derivable from the parts and is cross-linguistically predictable.

Etymology

Precentral gyrus literally means a brain fold made of two parts: precentral ('in front of the center') and gyrus ('fold'). It sits just before the brain's central line and sends signals that make muscles move, so the name now refers to the brain's main 'movement' area.