_______ receptors are normally inactive, but become active for a short time whenever there is a change in the modality that they monitor.

검증된 단계별 안내

Understand the question is asking about a type of receptor that is usually inactive but activates briefly when there is a change in the stimulus it monitors.

Recall that sensory receptors can be classified based on how they respond to stimuli: some respond continuously, while others respond only to changes.

Identify that receptors which respond only to changes in stimulus intensity or modality are called 'phasic receptors' or 'adaptation receptors'.

Phasic receptors quickly adapt to a constant stimulus and become inactive, but they fire impulses when the stimulus changes, signaling new information.

Therefore, the answer involves recognizing that these receptors are called 'phasic receptors' because they are normally inactive but activate briefly upon changes in the monitored modality.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Receptor Modality

Receptor modality refers to the specific type of stimulus a sensory receptor is sensitive to, such as light, sound, or pressure. Each receptor is specialized to detect changes in its particular modality, enabling the nervous system to interpret different environmental signals accurately.

Phasic Receptors

Phasic receptors are sensory receptors that remain inactive when a stimulus is constant but become active briefly when there is a change in the stimulus. They are important for detecting changes or new events in the environment, such as the onset or removal of a stimulus.

Sensory Adaptation

Sensory adaptation is the process by which sensory receptors reduce their response to a constant stimulus over time. This allows the nervous system to focus on new or changing stimuli, preventing overload from unchanging background information.