Extrapyramidal motor system



extrapyramidal motor system n.
Any of the various brain structures affecting bodily movement, excluding the motor neurons, the motor cortex, and the pyramidal tract, and including the corpus striatum, its substantia nigra and subthalamic nucleus, and its connections with the midbrain.

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  • Extrapyramidal-system

    noun, Anatomy. 1. the part of the central nervous system, including the descending motor fibers other than those of the pyramidal tract, that regulates muscle tone, posture, and other aspects of body movement.

  • Extrasaccular hernia

    extrasaccular hernia ex·tra·sac·cu·lar hernia (ěk’strə-sāk’yə-lər) n. See sliding hernia.



  • Extrasensorial

    [ek-struh-sen-sawr-ee-uh l, -sohr-] /ˌɛk strə sɛnˈsɔr i əl, -ˈsoʊr-/ adjective 1. .

  • Extrasensory

    [ek-struh-sen-suh-ree] /ˌɛk strəˈsɛn sə ri/ adjective 1. outside one’s normal sense perception. /ˌɛkstrəˈsɛnsərɪ/ adjective 1. of or relating to extrasensory perception adj. also extra-sensory, 1934, coined as part of extra-sensory perception in J.B. Rhine’s work, from extra- + sensory. extrasensory ex·tra·sen·so·ry (ěk’strə-sěn’sə-rē) adj. Being outside the normal range or bounds of the senses.



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