presynaptic terminals - meaning, definition, translation, pronunciation
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presynaptic terminals (english) - meaning, definition, translation, pronunciation


Part of Speech

Noun (plural)

Phonetic Transcription

/pɹiːˈsɪnæptɪk ˈtɜːrmɪnəlz/

Meaning and Usage

Presynaptic terminals refer to the endings of an axon in a neuron that release neurotransmitters to communicate with the postsynaptic neuron at a synapse. They play a crucial role in the transmission of signals in the nervous system. The term is primarily used in biological and neuroscientific contexts, particularly when discussing neural communication and synaptic transmission.

Frequency of Use: The term is used relatively frequently within scientific and academic contexts, especially in literature related to neuroscience, neurobiology, and psychology. It is more commonly found in written contexts, such as research articles and textbooks, rather than in everyday conversation.

Example Sentences

  1. The presynaptic terminals are responsible for releasing neurotransmitters into the synaptic cleft.
    (Синаптические терминалы отвечают за выделение нейротрансмиттеров в синаптическую щель.)

  2. Research shows that changes in the function of presynaptic terminals can lead to various neurological disorders.
    (Исследования показывают, что изменения в функции пресинаптических терминалов могут привести к различным неврологическим расстройствам.)

  3. When an action potential reaches the presynaptic terminals, it triggers the release of chemicals that affect the postsynaptic neuron.
    (Когда потенциал действия достигает пресинаптических терминалов, он вызывает выделение химических веществ, влияющих на постсинаптический нейрон.)

Idiomatic Expressions

Although "presynaptic terminals" does not have common idiomatic expressions directly associated with it, here are some related scientific phrases that involve the concept of synapses or neuronal communication:

  1. To hit the right synapse: This refers to making the correct connection or communication in a conversation, very much like synaptic signaling.
    (Ударить в правильную синапс: Это относится к правильному соединению или общению в разговоре, очень похоже на синаптическую передачу.)

  2. Firing neurons: This phrase emphasizes a sudden burst of activity, akin to the way neurons communicate through synaptic terminals.
    (Стреляющие нейроны: Эта фраза подчеркивает внезапный всплеск активности, подобно тому, как нейроны общаются через синаптические терминалы.)

  3. Synaptic jump: This refers to the quick transition of information from one neuron to another, akin to a figurative leap.
    (Синаптический прыжок: Это относится к быстрой передаче информации от одного нейрона к другому, подобно фигуральному скачку.)

Etymology

The term "presynaptic" is derived from the prefix "pre-" meaning "before" and "synaptic," which comes from "synapse." The word "synapse" is derived from the Greek word "synapsis," which means "to clasp together." Thus, "presynaptic" refers to the phase before the synapse where neurotransmitters are released.

The word "terminal" refers to the end parts of something; in a neuronal context, it denotes where processes or axons terminate.

Synonyms and Antonyms

Synonyms: - Axon terminals - Synaptic boutons

Antonyms: - Postsynaptic terminals - Postsynapse

This structure provides a comprehensive overview of "presynaptic terminals," its meanings, uses, and related linguistic information.



25-07-2024