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单词 precentral
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precentral
precentral adj.
Brit. /(ˌ)priːˈsɛntr(ə)l/
,
U.S. /ˌpriˈsɛntrəl/
Anatomy of, relating to, or designating the convolution of the frontal lobe of the brain immediately in front of the central sulcus (including the primary motor area); (also) designating the sulcus which forms its anterior boundary.
ΚΠ
1880 Science 31 Dec. 326/2 The pre-central fissure..is as long as the fissure of Rolando, extending farther upward [in the orang-utan] than in man.
1906 Amer. Jrnl. Psychol. 17 602 The ‘intermediate pre-central’ field is in front of the pre-central area proper and extends downwards to the orbital surface of the hemisphere.
1942 W. J. S. Krieg Functional Neuroanat. xiii. 235 When the anterior lip of the precentral sulcus is stimulated at a point with minimal current the muscular response is likely to be quite restricted.
1992 Sci. Amer. Sept. 57/1 Georgopoulos..has found command neurons of a kind in the monkey's motor cortex (precentral gyrus) that encode the direction of forelimb movement.
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