| 释义 |
preˈtectal, a. Anat.
[ad. mod.L. prætectālis, f. pre- B. 3 + tectum + -al.]
Lying in front of the tectum; of or pertaining to the pretectum.
1925Jrnl. Compar. Neurol. XXXIX. 195 (caption) Horizontal section through the posterior commissure, showing the pretectal nucleus in relation to the other parts of the thalamus and midbrain. 1959Folia Psychiatrica et Neurologica Japonica XIII. 268 The pretectal region is located between the posterior part of the thalamus and the tectum, equipped with admixture of cells of both thalamic and mesencephalic origin. 1973Brain Res. LXIII. 360 The fact that two or three optic tract volleys were needed to evoke a response in the short ciliary nerve..indicates a low excitability of the pretectal neurones concerned.
Hence (as a back-formation) preˈtectum, the pretectal region of the brain.
1961Lancet 9 Sept. 568/2 The disturbances in ocular motility and the radiological findings, led to the diagnosis of a small lesion in the pretectum. 1973Nature 1 June 295/1 The control of pupil size..is known to be mediated by a reflex pathway through the pretectum. |