Understanding the Reflex Arc

What are the main components of a reflex arc?

• Sensory neuron, interneuron, feedback mechanism, effector

• Sensory receptor, motor neuron, effector, synapse

• Sensory organ, motor neuron, effector, feedback loop

• Sensory receptor, sensory neuron, interneuron, motor neuron, effector.

Which neurons are involved in a reflex arc?

• Interneurons and sensory receptors

• Sensory neurons, interneurons, and motor neurons.

• Motor neurons and endocrine cells

• Sensory neurons and glial cells

Describe the pathway of a typical reflex arc.

• Sensory receptor, motor neuron, brain, effector

• Sensory neuron, spinal cord, sensory receptor, motor neuron

• The pathway of a typical reflex arc includes a sensory receptor, sensory neuron, spinal cord (interneuron), motor neuron, and effector.

• Motor neuron, effector, sensory neuron, spinal cord

What role do interneurons play in a reflex arc?

• They enhance the speed of reflex actions.

• They are responsible for the initial detection of stimuli.

• They connect sensory neurons to motor neurons within the spinal cord.

• They transmit signals from the brain to the effector.

How does the speed of a reflex arc compare to voluntary actions?

• Reflex arcs are generally slower than voluntary actions.

• Both reflex arcs and voluntary actions occur at the same speed.

• Voluntary actions are instantaneous compared to reflex arcs.

• Reflex arcs are faster than voluntary actions due to fewer synapses.

What is the function of the effector in a reflex arc?

• To transmit signals to the brain for further processing.

• To carry out the response initiated by the motor neuron.

• To process information and generate a response.

• To receive signals from the sensory neurons.