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Updated: Apr 17, 2026
07:04
Physiological, Morphological and Neurochemical Characterization of Neurons Modulated by Movement
Published on: April 21, 2011
14.3K
[Neural mechanisms of mastication]
1Department of Oral Physiology, Showa University School of Dentistry.
Brain and Nerve = Shinkei Kenkyu No Shinpo
|February 15, 2015
Summary
Mastication enhances mammalian energy intake. A brainstem network coordinates jaw and tongue muscles via shared pathways, crucial for feeding behaviors.
Area of Science:
- Neuroscience
- Mammalian Physiology
- Motor Control
Context:
- Mastication is vital for energy intake in mammals.
- Jaw motor control relies on sensory feedback and central pattern generators.
- Previous research explored masticatory circuits in neonatal mice.
Purpose:
- To investigate the neuronal network underlying synchronized jaw and tongue muscle activity.
- To identify the pathways involved in transmitting motor commands for mastication.
Summary:
- The study identified a bilateral neuronal network in the brainstem responsible for synchronized jaw and tongue movements.
- This network utilizes glutamatergic, glycinergic, and GABAergic neurotransmission.
- Motor commands are relayed to trigeminal and hypoglossal motoneurons via commissural and ipsilateral pathways.
Impact:
- Elucidates the neural basis of complex feeding behaviors.
- Provides insights into motor coordination mechanisms.
- Potential implications for understanding and treating feeding disorders.
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