Questions and Answers
What is a receptor?
A receptor is a specialized cell or structure that detects and responds to specific stimuli.
What is a sensory neuron?
A sensory neuron is a type of neuron that carries sensory information from receptors to the central nervous system.
What is a spinal nerve?
A spinal nerve is a mixed nerve that transmits sensory and motor signals to and from the spinal cord.
What is an interneuron?
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What is a motor neuron?
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What is an effector?
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Study Notes
Reflex Arc Components
- Receptor: A specialized cell or structure that detects changes in the environment (stimuli) and converts them into electrical signals.
- Sensory Neuron: Transmits sensory information from the receptor to the central nervous system (CNS), facilitating the reaction process.
- Spinal Nerve: A mixed nerve that carries both sensory and motor information to and from the spinal cord; connects the CNS to the peripheral nervous system.
- Interneuron: A type of neuron that connects sensory and motor neurons within the CNS; plays a key role in reflex actions and processing information.
- Motor Neuron: Relays signals from the CNS to effectors, enabling movement or action in response to stimuli.
- Effector: Any organ or cell that responds to signals from motor neurons; typically includes muscles or glands that carry out the response.
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Description
Test your knowledge on the key components of the reflex arc. This quiz covers the role of receptors, sensory neurons, interneurons, motor neurons, and effectors in facilitating reflex actions. Understand how these structures work together to respond to stimuli.
