In a simple reflex arc, which component detects the stimulus?

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Question: In a simple reflex arc, which component detects the stimulus?

Options:

Correct Answer: Sensory receptor

Solution:

The sensory receptor detects the stimulus and initiates the reflex arc by sending signals to the central nervous system.

In a simple reflex arc, which component detects the stimulus?

In a simple reflex arc, which component detects the stimulus?

Step 1: Understand what a reflex arc is. It is a pathway that the body uses to respond quickly to a stimulus.
Step 2: Identify the components of a reflex arc. These include the sensory receptor, sensory neuron, central nervous system, motor neuron, and effector.
Step 3: Focus on the sensory receptor. This is the part that detects the stimulus, like heat, light, or pressure.
Step 4: When the sensory receptor detects a stimulus, it sends signals to the central nervous system.
Step 5: The central nervous system processes the information and sends a response back through the motor neuron to the effector.

Simple Reflex Arc – A neural pathway that controls a reflex action, consisting of a sensory receptor, sensory neuron, integration center, motor neuron, and effector.
Sensory Receptor – The component that detects environmental stimuli and initiates the reflex response.