postcentraladj.
/ˌpəʊs(t)ˈsɛntr(ə)l/, U.S. /ˌpoʊs(t)ˈsɛntr(ə)l/ Anatomy.
Situated behind the centre; spec. designating or situated in a convolution of the parietal lobe of the brain immediately behind the central sulcus, or the sulcus immediately behind it.
ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > cerebrum > convolution
postcentral1880
cingulate1916
1880 Science 31 Dec. 326/2 The anterior central convolution in front of the central fissure runs into the post-central convolution above and below.
1881 Science 16 Apr. 174/2 The upper ends of the pre- and post-central gyri.
1959 Schvell & Jenkins in S. Saporta & J. R. Bastian Psycholinguistics (1961) 428/2 Verbal aphasia, resulting from lesions of the pre- and post-central convolutions.
1967 G. M. Wyburn et al. Conc. Anat. vii. 193 It..separates the precentral gyrus from the postcentral gyrus.
1984 J. Joseph Aids to Anat. (ed. 13) vi. 237 The superior postcentral sulcus continues the line of the vertical part of the intraparietal sulcus.
Derivatives
postˈcentrally adv. in or towards the postcentral convolution of the parietal lobe of the brain.
ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adverb] > convolution
postcentrally1968
1968 Brit. Med. Bull. 24 202/1 A normally responsive alpha rhythm at 7–8 cyc./sec. is present postcentrally, with slightly higher voltage on the right side.
1979 Exper. Brain Res. 36 445 Twenty-five/sixty-five precentrally projecting neurones and 45/48 postcentrally projecting neurones were activated by stimulation of the contralateral median or radial nerves.
2003 Surg. Neurol. 60 381 In one case of a meningioma, according to PTV [= pyramidal tract visualization], the tumor was falsely localized postcentrally.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).
<
adj.1880