interneuronal

Exocytosis in neuronal chemical synapses is Ca triggered and serves interneuronal signalling.

Interneuronal injury-when dysfunction occurs at one joint or segment, the related agonist muscles are also affected.

Thus, the functional connectivity between mechanoreceptors and specific interneuronal populations within the spinal cord varies according to the physiological state.

There are three proposed mechanisms for synkinesis: aberrant nerve regeneration, interneuronal ephaptic transmission, and nuclear hyperexcitability.

Additionally, the same single interneuronal network has been found to produce not only "rhythmic, muscle-based escape swimming," but also "nonrhythmic, cilia-mediated crawling."

There were, after all, only a finite number of neurones in the human brain, and a corresponding finite limit to the number of possible interneuronal connections.

Interneuronal junctions between cell bodies (Landolt and Ris, 1966) or between axons and somata are rare or absent.

In vitro studies show that incremental two-threefold changes in SHH concentration give rise to motor neuron and different interneuronal subtypes as found in the ventral spinal cord.

The amount of interneuronal Parvalbumin is lower than normal in brain's motor cortex areas, and oxidative injury of oligodendrocytes and neurons could be associated with active demyelination and axonal injury.

Previous, fluorescent microscopy studies of Alzheimer's disease (AD) brain specimens have shown that [F-18] FDDNP displays an excellent visualization of interneuronal neurofibrillary tangles (NFTs).

The changes in muscle tone probably result from alterations in the balance of inputs from reticulospinal and other descending pathways to the motor and interneuronal circuits of the spinal cord, and the absence of an intact corticospinal system.

Embryonic interneuronal migration to the cerebral cortex is mediated by an array of motogenic growth factors in the MGE, repulsive factors in the striatum and LGE, permissive factors in migratory corridors in the ganglionic eminence, and attractive factors in the cortex itself.

In addition to the above chemical synapses, where the vesicles indicate the role of transmitter substances, other interneuronal contacts are formed by ephapses or tight junctions between the pre- and post-synaptic membranes; the ultrastructure of such contacts suggests that they are synapses across which electrical transmission occurs (e.g. Steiger, 1967; Huddart, 1971b).