猫丘脑后组中牙髓驱动神经元的特征

Characteristics of tooth pulp-driven neurons in the posterior group of the cat thalamus.

作者信息

Matsumoto N, Sato T, Sawano H, Tochinai A, Suzuki T A

机构信息

Department of Oral Physiology, School of Dentistry, Iwate Medical University, Japan.

出版信息

Neurosci Lett. 1988 Nov 11;93(2-3):253-8. doi: 10.1016/0304-3940(88)90091-2.

DOI:10.1016/0304-3940(88)90091-2

PMID:3241650

Abstract

This investigation was designed to determine the responses of neurons in the posterior group of nuclei (PO) to tooth pulp stimulation. Eighteen tooth pulp-driven (TPD) neurons were recorded in 9 cats anesthetized with nitrous oxide and halothane, 14 of them in the medial part (POM) and the remainder in the lateral part (POL) of the posterior nuclei. These TPD neurons also responded to non-noxious tactile stimuli of the orofacial region of the body. Most TPD neurons responded with a short latency of less than 20 ms to tooth pulp stimulation (mean 13.5 +/- 5.9). The number of teeth having afferents to these neurons was 4-8 (mean 6.7 +/- 1.3).

摘要

本研究旨在确定后核群（PO）中的神经元对牙髓刺激的反应。在9只使用一氧化二氮和氟烷麻醉的猫中记录到18个牙髓驱动（TPD）神经元，其中14个位于后核的内侧部分（POM），其余位于外侧部分（POL）。这些TPD神经元也对面部区域的非伤害性触觉刺激有反应。大多数TPD神经元对牙髓刺激的反应潜伏期较短，小于20毫秒（平均13.5 +/- 5.9）。向这些神经元传入神经的牙齿数量为4 - 8颗（平均6.7 +/- 1.3）。