propriospinaladj.
/ˌprəʊprɪəʊˈspʌɪnl/, U.S. /ˈˌproʊprioʊˈspaɪn(ə)l/ Anatomy.
Belonging exclusively or especially to the spinal cord; spec. designating, relating to, or involving nerve cells or fibres that connect different segments of the spinal cord.
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myelonal1846
myelonic1883
cortico-spinal1901
propriospinal1904
1904 C. S. Sherrington in Nature 8 Sept. 461 (caption) Proprio-spinal neurones.
1920 H. Head Stud. in Neurol. II. iii. 504 If these proprio-spinal paths have been destroyed, or their functions abolished, the mass-reflex may appear in its complete form even though some sensation and voluntary movement are still present below the level of the lesion.
1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) I. xxiv. 661/2 Long spinal reflexes are mediated by propriospinal neurons whose cell bodies lie in the central gray matter and send their axons into the adjacent white matter.
2000 Clin. Neurophysiol. 111 2175/1 Propriospinal myoclonus (PSM) consists of flexion or extension jerking arising in axial muscles and spreading to caudal and rostral muscles at low velocity along propriospinal pathways.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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