Definition

1. Noun:
   • The site where a motor neuron communicates with a muscle fiber: The "myoneural junction" is the specialized synapse where the terminal end of a motor nerve fiber transmits a signal to a muscle cell, initiating contraction.

Examples of Usage

• Noun:
  • Acetylcholine is released at the myoneural junction. (This describes the specific location of a key chemical event.)
  • Diseases like myasthenia gravis affect signal transmission at the myoneural junction. (This identifies the anatomical site of a medical condition.)

Advanced Usage

• "Function of the myoneural junction": Refers to the physiological role of this structure in converting a neural signal into muscular action.
  • Understanding the function of the myoneural junction is fundamental to neurophysiology.

Variants and Related Words

• Neuromuscular junction (n): A complete synonym for "myoneural junction." The terms are used interchangeably in medical and biological contexts.

  • The terms "myoneural junction" and "neuromuscular junction" refer to the same structure.

• Synapse (n): A more general term for the junction between two nerve cells or between a nerve cell and another cell (like a muscle or gland cell). The myoneural junction is a specific type of synapse.

  • The myoneural junction is the synapse between a motor neuron and a skeletal muscle fiber.

Synonyms

• Neuromuscular junction: The junction between a nerve and a muscle.

Related Phrases

• Motor end plate: This term specifically refers to the specialized region of the muscle fiber membrane at the myoneural junction that contains receptors for the neurotransmitter.
  • The neurotransmitter binds to receptors on the motor end plate within the myoneural junction.

Noun

1. the junction between a nerve fiber and the muscle it supplies