Question

what is the correct order for the components of a reflex arc?
multiple choice
receptor, sensory neuron, motor neuron, interneuron, effector
receptor, sensory neuron, interneuron, motor neuron, effector
effector, sensory neuron, receptor, interneuron, motor neuron
effector, receptor, sensory neuron, motor neuron, interneuron

Explanation:

In a reflex arc, the correct sequence is: 1. Receptor (detects stimulus), 2. Sensory neuron (transmits signal to CNS), 3. Interneuron (in CNS, processes signal), 4. Motor neuron (transmits signal from CNS to effector), 5. Effector (responds to the signal, e.g., muscle or gland). So the third option follows this correct order.

Answer:

Receptor, sensory neuron, interneuron, motor neuron, effector (the third option: Receptor, sensory neuron, interneuron, motor neuron, effector)