The Neural Circuitry Underlying the Gill-Withdrawal Reflex Is Known: a Sensory

question 16

Multiple Choice

The neural circuitry underlying the gill-withdrawal reflex is known: A sensory neuron in the gill synapses onto a motor neuron that innervates the gill. What is a neural mechanism for habituation?

• A) With repeated stimulation, the sensory neuron produces fewer and fewer action potentials.
• B) With repeated stimulation, the sensory neuron produces action potentials of decreased amplitude.
• C) With repeated stimulation the synaptic response in the motor neuron decreases.
• D) With repeated stimulation the motor neuron releases less neurotransmitter.
• E) With repeated stimulation the muscles become fatigued.

Understand the significance of the myelin sheath in neural communication.

Recognize brain structures involved in attention and analysis of sensory information.

Compare different imaging techniques for studying brain function.

Explore the symptoms and affected brain areas associated with common neurological and psychological disorders.

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Definitions:

Stimulation Source

An external or internal factor that induces a response or activity in biological, chemical, or physical systems.

Hypothalamus

A region of the brain that plays a crucial role in many important functions, including releasing hormones, regulating body temperature, and managing feelings of hunger and thirst.

Sensory Input

Information received by the body's sensory organs, which is then sent to the brain for processing.