CONVERGENCE OF AFFERENTS FROM SUPERIOR SAGITTAL SINUS AND TOOTH-PULP ON CELLS IN THE THALAMUS OF THE CAT
CONVERGENCE OF AFFERENTS FROM SUPERIOR SAGITTAL SINUS AND TOOTH-PULP ON CELLS IN THE THALAMUS OF THE CAT
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DOI：
10.1046/j.1468-2982.1995.015003191.x
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发表时间：
1995-06-01
期刊：
影响因子：
4.9
通讯作者：
LAMBERT, GA
中科院分区：
文献类型：
--
作者：
ANGUSLEPPAN, H;OLAUSSON, B;LAMBERT, GA
我们之前已经证明猫颈脊髓中颅血管和牙髓传入的会聚。这项研究在丘脑中寻找类似的会聚。54个丘脑细胞的输入从牙髓，上级矢状窦，或两者，被确定。29个具有齿杆和上级矢状窦输入的细胞位于腹基底复合体或板内核。这29个细胞中的大多数也通过冷却对侧牙髓而兴奋，并且21个在对侧面或前肢上具有感受野。刺激上级矢状窦而不是牙髓，在几个核中发现了20个细胞。刺激牙髓而不刺激矢状窦的5个细胞仅限于腹基底复合体。这些数据证实了麻醉猫丘脑中矢状窦、牙髓和皮肤的会聚。
We have previously shown convergence of craniovascular and tooth pulp afferents in the cervical spinal cord of cats. This study looked for similar convergence in the thalamus. Fifty-four thalamic cells with input from tooth pulp, superior sagittal sinus, or both, were identified. Twenty-nine cells with tooth pub and superior sagittal sinus input were located in the ventrobasal complex or the intralaminar nuclei. Most of these 29 cells were also excited by cooling the contralateral tooth pulp, and 21 had receptive fields on the contralateral face or forelimb. Twenty cells excited by stimulation of superior sagittal sinus, and not tooth pulp, were found in several nuclei. The 5 cells excited by stimulation of tooth pulp, but not sagittal sinus, were restricted to the ventrobasal complex. The data confirm convergence from sagittal sinus, tooth pulp, and skin in the thalamus of anaesthetized cats.