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Some nerves are myelinated,others are not.Myelinated nerves send signals faster than unmyelinated neurons.Draw two neurons of equal length and wrap segments of myelin along one.Be careful to leave spaces for the nodes of Ranvier.Now,measure the exposed axons of each and total up the distance.Describe why the myelinated neurons send signals faster.
Thalamus
A subcortical forebrain structure; the gateway to the brain for almost all incoming sensory information before that information reaches the cortex.
Cortex
The outermost layer of the brain, responsible for higher brain functions such as thought, reasoning, memory, and voluntary movement.
Cerebral Cortex
The outermost layer of the brain, responsible for complex behaviors including thought, emotion, and motor function.
Corpus Callosum
A dense band of nerve fibers that connects the two hemispheres of the brain, facilitating interhemispheric communication.
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