After Nervous Stimulation Stops, What Prevents ACh in the Synaptic

question 23

Multiple Choice

After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?

• A) acetylcholinesterase breaks apart the ACh
• B) the action potential stops going down the overloaded T tubules
• C) calcium ions returning to the terminal cisternae
• D) the tropomyosin blocking the myosin once full contraction is achieved

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Definitions:

Sensory System

A part of the nervous system responsible for processing sensory information received from the environment.

Thalamus

A brain structure that acts as a relay station, processing and transmitting sensory information to the appropriate areas of the brain for further processing.

Cortex

The outer layer of the cerebrum in the brain, associated with higher brain functions such as thought and action.

Smell

A sense that detects odors or scents through the olfactory system, typically perceived through the nose.