RESPONSES OF ELECTRORECEPTORS (AMPULLAE OF LORENZINI) OF SKATES TO ELECTRIC AND MAGNETIC-FIELDS

被引：26

作者：

AKOEV, GN ^{[1
]}

ILYINSKY, OB ^{[1
]}

ZADAN, PM ^{[1
]}

机构：

[1] IP PAVLOV PHYSIOL INST, LENINGRAD, USSR

来源：

JOURNAL OF COMPARATIVE PHYSIOLOGY | 1976年 / 106卷 / 02期

关键词：

D O I：

10.1007/BF00620494

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

Single nerve fiber responses of the ampullae of Lorenzini to electric and magnetic stimulation were studied in the Black Sea skates, Trygon pastinaca and Raja clavata. Thresholds for electric stimulation were in the range 1 .cntdot. 10-10-1 .cntdot. 10-8 A/mm2. There was electrical coupling between receptors associated with different ampullar canals. The receptors responded only to a changing magnetic field, the constant field being without effect. The minimum thresholds for magnetic stimulation were 0.8 and 20 Gauss/s for dorsal and mandibular receptors, respectively. Receptor thresholds to magnetic stimulation were dependent on the length of the ampullar canal and sensitivity to electric current. The character of the responses depended on both the direction of the magnetic field and the position of the receptor. The mechanism of the magnetic field effect was analyzed. Skates can possibly perceive the magnetic field of the earth.

引用

页码：127 / 136

页数：10

共 23 条

[1]

AKOEV G N, 1974, Neirofiziologiya, V6, P426

[2] SOME FUNCTIONAL CHARACTERISTICS OF ELECTRORECEPTORS (AMPULLAE OF LORENZINI) OF ELASMOBRANCHS [J].