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Reflex Arc Components Quiz

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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?

Is the site of a stimulus action. Signup and view all the answers

What does a motor neuron do?

Sends an impulse to a muscle or gland. Signup and view all the answers

What are the five basic components of a reflex arc?

Receptor, sensory neuron, integration center, motor neuron, effector. Signup and view all the answers

What is a reflex?

An involuntary response to a sensory stimulus. Signup and view all the answers

What is a reflex arc?

The nerve pathway involved in a reflex action. Signup and view all the answers

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.