synaptic spine
[sɪˈnæptɪk spaɪn]
nounpl: synaptic spines
espinha sináptica
1. A small, spine-like protrusion from the dendrite of a neuron that forms the postsynaptic component of a synapse, typically receiving input from an axon terminal of another neuron
The synaptic spine undergoes morphological changes during learning and memory formation.
A espinha sináptica sofre mudanças morfológicas durante a formação de aprendizado e memória.
2. A microscopic structure on neuronal dendrites that increases surface area for synaptic transmission and plays a crucial role in neuroplasticity
Researchers observed that the density of synaptic spines increased after repeated stimulation.
Os pesquisadores observaram que a densidade de espinhas sinápticas aumentou após estimulação repetida.
This is a specialized scientific term used primarily in neuroscience, neurobiology, and medical research contexts. It is not part of everyday vernacular in either Brazilian Portuguese or American English. The term is used identically in academic and research settings across both countries and English-speaking regions. Understanding synaptic spines is fundamental to modern neuroscience research on memory, learning, and neurological disorders.
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