CONVERGENCE OF AFFERENTS FROM SUPERIOR SAGITTAL SINUS AND TOOTH-PULP ON CELLS IN THE THALAMUS OF THE CAT

被引：10

作者：

ANGUSLEPPAN, H ^{[1
]}

OLAUSSON, B ^{[1
]}

BOERS, P ^{[1
]}

LAMBERT, GA ^{[1
]}

机构：

[1] UNIV NEW S WALES,PRINCE WALES HOSP,SCH MED,INST NEUROL SCI,COOGEE,NSW 2034,AUSTRALIA

来源：

CEPHALALGIA | 1995年 / 15卷 / 03期

基金：

英国医学研究理事会;

关键词：

D O I：

10.1046/j.1468-2982.1995.015003191.x

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

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.

引用

页码：191 / 199

页数：9

共 31 条

[1]

Yokota T., Masuda T., Taguchi H., Koyama N., Schmidt R.F., Schaible H.G., Vahle-Hinz C., Viscerosomatic convergence onto nociceptive neurons in the shell region of nucleus ventralis lateralis, Fine afferent nerve fibres and pain, pp. 427-437, (1987)

[2]

Davis K.D., Dostrovsky J.O., Properties of feline thalamic neurons activated by stimulation of the middle meningeal artery and sagittal sinus, Brain Res, 454, pp. 89-100, (1988)

[3]

Zagami A.S., Lambert G.A., Stimulation of cranial vessels excites nociceptive neurones in several thalamic nuclei of the cat, Exp Brain Res, 81, pp. 506-552, (1990)

[4]

Rydenhag B., Olausson B., Andersson S.A., Projection of tooth pulp afferents to the thalamus of the cat. I. Focal potentials and thalamo-cortical connections, Exp Brain Res, 64, pp. 37-48, (1986)

[5]

Rydenhag B., Roos A., Projection of tooth pulp afferents to the thalamus of the cat. II. Distribution and characteristics of single units, Exp Brain Res, 64, pp. 49-58, (1986)

[6]

Lund J.P., Sessle B.J., Oral-facial and jaw muscle afferent projection to neurones in cat frontal cortex, Exp Neurol, 45, pp. 314-331, (1974)

[7]

Sessle B.J., The neurobiology of facial and dental pain: present knowledge, future directions, J Dent Res, 156, pp. 962-981, (1987)

[8]

Byers M.R., Dental sensory receptors, In: Smythes JR, 25, pp. 39-94, (1984)

[9]

Dong W.K., Chudler E.H., Origins of tooth pulp-evoked far-field and early near-field potentials in the cat, J Neurophysiol, 51, pp. 859-889, (1984)

[10]

Lisney S.J.W., Some anatomical and electrophysiological properties of tooth-pulp afferents in the cat, J Physiol Lond, 284, pp. 19-36, (1978)

← 1 2 3 4 →