Biomaterial Database

Antidromic and synaptic activation of Deiters' neurons induced by stimulation of red nucleus in the cat. 1992

V H Sarkisian, and V V Fanardjian

Laboratory of Physiology of Central Nervous System, Orbeli Institute of Physiology, Academy of Sciences of Armenia, Yerevan.

Antidromic and orthodromic action potentials of neurons located in the lateral vestibular nucleus of Deiters' evoked by stimulation of red nucleus were studied in anaesthetized cats. Vestibulospinal neurons were identified by stimulation of the lateral vestibulospinal tract. The 'second-order' vestibular neurons were revealed by mean of stimulation of the ipsilateral VIIIth nerve. Stimulation of the red nucleus is shown to lead mainly to antidromic, as well as mono-, oligo- and polysynaptic activation of Deiters' neurons. Not any inhibitory reaction was observed in vestibular neurons in response to stimulation of the red nucleus. Ascending axon collaterals of the vestibulospinal neurons to this brainstem structure were revealed. The peculiarities and functional significance of the effects mentioned are discussed.

UI	MeSH Term	Description	Entries
D009474	Neurons	The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.	Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D012012	Red Nucleus	A pinkish-yellow portion of the midbrain situated in the rostral mesencephalic tegmentum. It receives a large projection from the contralateral half of the CEREBELLUM via the superior cerebellar peduncle and a projection from the ipsilateral MOTOR CORTEX.	Nucleus Ruber,Nucleus, Red
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D003689	Vestibular Nucleus, Lateral	Vestibular nucleus lying immediately superior to the inferior vestibular nucleus and composed of large multipolar nerve cells. Its upper end becomes continuous with the superior vestibular nucleus.	Deiter Nucleus,Lateral Vestibular Nucleus,Deiter's Nucleus,Nucleus Vestibularis Lateralis,Nucleus Vestibularis Magnocellularis,Nucleus of Deiters,Deiters Nucleus,Nucleus Vestibularis Laterali,Nucleus Vestibularis Magnocellulari,Nucleus, Deiter,Nucleus, Deiter's,Nucleus, Lateral Vestibular,Vestibularis Laterali, Nucleus,Vestibularis Lateralis, Nucleus,Vestibularis Magnocellulari, Nucleus,Vestibularis Magnocellularis, Nucleus
D004558	Electric Stimulation	Use of electric potential or currents to elicit biological responses.	Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical
D000200	Action Potentials	Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.	Spike Potentials,Nerve Impulses,Action Potential,Impulse, Nerve,Impulses, Nerve,Nerve Impulse,Potential, Action,Potential, Spike,Potentials, Action,Potentials, Spike,Spike Potential
D000344	Afferent Pathways	Nerve structures through which impulses are conducted from a peripheral part toward a nerve center.	Afferent Pathway,Pathway, Afferent,Pathways, Afferent
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D014725	Vestibular Nerve	The vestibular part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The vestibular nerve fibers arise from neurons of Scarpa's ganglion and project peripherally to vestibular hair cells and centrally to the VESTIBULAR NUCLEI of the BRAIN STEM. These fibers mediate the sense of balance and head position.	Scarpa's Ganglion,Ganglion, Scarpa's,Nerve, Vestibular,Nerves, Vestibular,Scarpa Ganglion,Scarpas Ganglion,Vestibular Nerves