Spinal Reflex A spinal reflex actionally roquires three neurons.Using sgure 15.5

Question

Spinal Reflex A spinal reflex actionally roquires three neurons.Using sgure 15.5 as a reference, what function is served by the . sensory neuron? 2. isterneuron? 3, motor neuron? These three neurons form the so-called spinal reflex are Spinal Reflex in Frog (Optional) Halda frog so that its legs hang down loosely. Apply 10% acetic acid to the left leg and note the response. Explain why both legs respond to the stimulus. If the sciatic nerve is severed on the left side, will the frog still be able to respond to this stimulus? (The sciaic he serves the muscles of the leg.) If just the dorsal root ganglion is severed, will the frog still be able to respond to the stimulus? If the ventral root only is severed, what will happen to the left leg if 10% acetic acid is applied to the leg on that side? What will happen to the right leg? If the brain is destroyed, will the frog still be able to respond to the stimulus? Also answer these questions: In what manner is it passible for the intact brain to become aware of a stimulus? 15-8

Explanation / Answer

Sensory neuron carries nerve signal from receptor organ to spinal cord.

2. Interneuron converts sensory impulse to motor impulse.

3. Motor neuron carries signal from spinal cord to effector organ to produce desired response.

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