cerebral peduncle

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Related to Cerebral peduncles: cerebral aqueduct, thalamus

cerebral peduncle

[sə′rē·brəl pi′dəŋ·kəl]
(cell and molecular biology)
One of two large bands of white matter (containing descending axons of upper motor neurons) which emerge from the underside of the cerebral hemispheres and approach each other as they enter the rostral border of the pons.