Brain Anatomy and Function

Image of neurons in synapse locations
Bacterial infections can make their way to the brain, where they can linger undetected.
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Your selections: Brain Anatomy and Function
How does the brain track smells? Scientists use the olfactory system in insects to study how the brain responds to and processes different odors.
Neurons in the eye turn light into electrical signals. How and where signals travel between these cells is thought to affect vision.
Synesthesia is a condition in which stimulation of one sense automatically evokes a perception in an unstimulated sense.
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The human brain — a spongy, three-pound mass of tissue — is the most complex living structure in the known universe.
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Plasticity itself is not unique to humans, but the degree to which our brains are able to adapt is.
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Neuron formation begins in the earliest stages of human development. Signaling molecules “turn on” certain genes and “turn off” others, beginning nerve cell induction.
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Genes and the environment converge powerfully during early sensitive windows of brain development to form the neural circuits underlying behavior. Although most neuronal cell death occurs in the embryo, the paring down of connections occurs in large part during critical periods in early postnatal life.
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Once the neurons reach their final location, they must make the proper connections so that a particular function, such as vision or hearing, can emerge.
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Networks of spinal neurons also participate in controlling the alternating action of the legs during normal walking, maintaining posture, and, to a large degree, in all movements.
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From the stands at sports events, we marvel at the actions of athletes. But in fact, each of us in our daily activities performs a host of complex, skilled movements that are just as remarkable.
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Our best insights into how the normal brain ages come from long-term studies of the nervous system that began decades ago.
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Touch is the sense by which we determine the characteristics of objects: size, shape, and texture.
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3D Brain

An interactive brain map that you can rotate in a three-dimensional space.