Question
The ____ refracts incoming light to focus it on the retina.
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____ are the basic working unit of the brain; a specialized cell designed to transmit information to other nerve cells, muscle, or gland ce…
____ are when interneurons in the spinal cord relay info to the source of stimuli while simultaneously routing it to the brain .
Reflex arcs are when interneurons in the spinal cord relay info to the ____ .
The central nervous system is made up of the ____.
The ____ nervous system is made up of the brain and spinal cord.
The ____ nervous system consists of nervous tissue and fibers outside the CNS .