Questions and Answers
What is a sensory neuron?
Transmits afferent impulses to the CNS.
What is an effector?
An organ that responds to a stimulus.
What is the function of the integration center?
Consists of one or more synapses in the CNS.
What is a receptor?
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What does a motor neuron do?
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What are the five basic components of a reflex arc?
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What is a reflex?
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What is a reflex arc?
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What is the definition of an interneuron?
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What is the skin's role in the reflex arc?
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Study Notes
Reflex Arc Components
- Receptor: Site where a stimulus initiates a response, crucial for detecting environmental changes.
- Sensory Neuron: Transmits afferent impulses from the receptor to the central nervous system (CNS), enabling perception of stimuli.
- Integration Center: Comprises one or more synapses located within the CNS, where sensory input is processed and a response is formulated.
- Motor Neuron: Sends efferent impulses from the integration center to an effector, facilitating the execution of an action.
- Effector: An organ, such as a muscle or gland, that produces a reaction to a stimulus, completing the reflex arc.
Additional Concepts
- Reflex: An involuntary and automatic response triggered by a sensory stimulus, allowing for quick reactions to stimuli.
- Reflex Arc: The specific nerve pathway that governs reflex actions, highlighting the sequence from stimulus detection to motor response.
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Description
Test your knowledge on the components of the reflex arc, including receptors, sensory neurons, integration centers, motor neurons, and effectors. This quiz covers the essential elements that facilitate the reflex action in response to stimuli.
