If You Applied Tiny Amounts of ACh to Muscle, You

question 15

Multiple Choice

If you applied tiny amounts of ACh to muscle, you get excitatory postsynaptic potentials (epsps) on individual muscle fibers. When a muscle is stimulated, however, action potentials are also fired and obscure the epsps. What manipulation can be done to mask the action potentials, thereby revealing the underlying epsps?

• A) The application of tiny amounts of ACh
• B) The application of tiny amounts of tetrodotoxin
• C) The application of tiny amounts of curare
• D) The application of substantial amounts of ACh
• E) The application of substantial amounts of sodium

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Definitions:

Neurotransmitters

Chemicals found in the brain and nervous system that transmit signals across synapses from one neuron to another.

Schizophrenia

A chronic and severe mental disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.

Dopamine

A neurotransmitter associated with pleasure, movement, and attention, crucial for both cognitive and physical functioning.

Schizophrenic Disorder

A long-term mental disorder involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception and inappropriate actions or feelings.