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Interneurons (also called internuncial neurons, association neurons, connector neurons, or intermediate neurons) are neurons that are not specifically motor neurons or sensory neurons. Interneurons are the central nodes of neural circuits , enabling communication between sensory or motor neurons and the central nervous system (CNS). [ 2 ]
Different neurotransmitters are released from different interneurons, but the two most common neurotransmitters are GABA, the primary inhibitory neurotransmitter and glutamate, the primary excitatory neurotransmitter. [9] [10] Acetylcholine is a neurotransmitter that often activates interneurons by binding to a receptor on the membrane. [11]
Swallowing depends on a deglutition centre, a CPG located in the medulla oblongata, which involves several brain stem motor nuclei and two main groups of interneurons: a dorsal swallowing group (DSG) in the nucleus tractus solitarii and a ventral swallowing group (VSG) located in the ventrolateral medulla above the nucleus ambiguus. Neurons in ...
The majority of posterior column projection neurons are located in lamina I, however most neurons in this layer are interneurons. [14] The main areas these neurons innervate are the caudal ventrolateral medulla (CVLM), the nucleus of the solitary tract (NTS), the lateral parabrachial area (LPb), the periaqueductal grey matter (PAG), and certain ...
The caudal ganglionic eminence is another subcortical structure that is essential to the generation of cortical interneurons. It is located next to the lateral ventricle, posterior to where the LGE and MGE fuse. [6] The CGE is a fusion of the rostral medial and lateral ganglionic eminence, which begins at the mid to caudal thalamus.
Spinal neurons are specialized nerve cells located within the spinal cord. [1] They are a crucial component of the central nervous system.These neurons play vital roles in transmitting and processing information between the brain and the rest of the body.
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Cortical interneurons vary in shape, molecular make-up, and electrophysiology; they function collectively to maintain the balance between excitation and inhibition in the cortex primarily through the use of GABA. Disruption of this balance is a common feature of neuropsychiatric disorders such as schizophrenia.