AXON TERMINAL Meaning and
Definition
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Axon terminal refers to the specialized structure found at the end of an axon, a long, thread-like projection of a nerve cell or neuron. It is an essential component of a neuron that is responsible for transmitting information to another neuron or an effector cell, such as a muscle or gland.
The axon terminal contains several crucial features that allow for efficient communication between neurons. One of the primary elements is the synaptic vesicles, small membrane-bound sacs that store various neurotransmitters, chemicals used to transmit signals across the synaptic gap. These vesicles hold an array of neurotransmitters such as dopamine, serotonin, or gamma-aminobutyric acid (GABA).
The axon terminal also contains mitochondria, which provide the energy needed for neurotransmitter synthesis, packaging, and release. Additionally, the terminal region of the axon is densely packed with a large number of proteins involved in the release, reception, and reuptake of neurotransmitters.
When an action potential reaches the axon terminal, it triggers the release of neurotransmitters into the synapse, or the small gap between the axon terminal and the target cell. These neurotransmitters bind to receptors on the receiving neuron or effector cell, thereby initiating signal transmission. This chemical signal transmission is critical for various processes in the nervous system, including sensory perception, muscle contraction, and memory formation.
In summary, the axon terminal is a key structure in the nervous system that enables communication between neurons. It contains specialized components that facilitate the release, reception, and reuptake of neurotransmitters, allowing for efficient signal transmission across synapses.
Common Misspellings for AXON TERMINAL
- zxon terminal
- sxon terminal
- wxon terminal
- qxon terminal
- azon terminal
- acon terminal
- adon terminal
- ason terminal
- axin terminal
- axkn terminal
- axln terminal
- axpn terminal
- ax0n terminal
- ax9n terminal
- axob terminal
- axom terminal
- axoj terminal
- axoh terminal
- axon rerminal
- axon ferminal
Etymology of AXON TERMINAL
The etymology of the word "Axon Terminal" can be traced back to two main sources:
1. Axon: The term "axon" comes from the Greek word "axis", which means "axis" or "axle". This reflects the elongated structure of the axon, which resembles an axle or a long cylinder. The term was first used in the 19th century by German anatomist Heinrich Wilhelm Waldeyer, who described the axon as a unidirectional process that carries information away from the cell body of a neuron.
2. Terminal: The word "terminal" is derived from the Latin word "terminus", meaning "boundary" or "end". In the context of axons, the term "terminal" refers to the specialized endings of the axon branches, which form connections with other neurons or target cells.
Idioms with the word AXON TERMINAL
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