When the Nerve Signal Reaches the Axon Terminal,what Happens Next

question 58

Multiple Choice

When the nerve signal reaches the axon terminal,what happens next?

• A) The muscle contracts.
• B) The synaptic vesicles release neurotransmitter.
• C) An electrical signal is formed that jumps the synaptic cleft.
• D) H⁺ is pumped into the synaptic cleft.
• E) Myosin is released from the axon terminal.

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Definitions:

Bony Labyrinth

A complex system of channels and cavities within the temporal bone of the skull, housing the organs of hearing and balance in the inner ear.

Attenuation Reflex

The reflex mechanism that protects the inner ear from damage by reducing the transmission of sound, particularly for loud sounds, through the contraction of muscles around the ossicles.

Scala Vestibuli

A fluid-filled chamber in the cochlea of the inner ear; it lies above the scala media and begins near the oval window.

Scala Tympani

A spiral-shaped canal in the inner ear that forms part of the cochlear duct, important for the transmission of sound vibrations.