biology

4. convert a specific type of stimulus, via their receptors, into action potentials or graded potentials.
6. An immediate movement in response to a stimulus.
8. a nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.
9. The nerve pathway followed by a reflex action is called a...
10. a thing or event that evokes a specific functional reaction in an organ or tissue.

1. branched extensions of a nerve cell.
2. structure that permits a neuron to pass an electrical or chemical signal to another neuron or to the target effector cell.
3. an organ or cell able to respond to light, heat, or other external stimulus and transmit a signal to a sensory nerve.
5. found in the brain and spinal cord and allow sensory and motor neurons to communicate.
7. an organ or cell that acts in response to a stimulus.