Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

Purkinje cells are among the most complex neurons in the brain. Located in the cerebellum, they release the inhibitory neurotransmitter GABA. In doing so, these cells polish movements, enabling precise timing and coordination. 

For you to see, your brain has to convert light energy into electrical energy that it can understand. It does so with the retina. This inner layer of the eye contains multiple cells that enable vision. From bottom to top, it goes pigmented epithelium (purple), photoreceptors (green), bipolar and horizontal cells (blue green), bipolar and amacrine cells (blue green), and ganglion cells (red). 

For you to see, your brain has to convert light energy into electrical energy that it can understand. It does so with the retina. This inner layer of the eye contains multiple cells that enable vision. From bottom to top, it goes pigmented epithelium (purple), photoreceptors (green), bipolar and horizontal cells (blue green), bipolar and amacrine cells (blue green), and ganglion cells (red). 

For you to see, your brain has to convert light energy into electrical energy that it can understand. It does so with the retina. This inner layer of the eye contains multiple cells that enable vision. From bottom to top, it goes pigmented epithelium (purple), photoreceptors (green), bipolar and horizontal cells (blue green), bipolar and amacrine cells (blue green), and ganglion cells (red). 

With a fluorescent dye, researchers are able to highlight different cells. The bipolar cells are pictured in green. They stimulate the optic nerve to communicate vision with the brain. They are called bipolar because they have an outward extension on each side. The first is the receiving end (dendrites), and the second is the communicating end (axons). 

The final layer of the retina contains special ganglion cells. Their fibers make up the optic nerve; it is how visual information gets to the brain. Notice how the green fibers are moving toward the center, ready to exit the eye and enter the brain.

The bottom layer of the retina is called the pigmented epithelium. Think of it as a recycling center. Photoreceptors are the cells that convert light energy into electrical signals; they do this with a photopigment that absorbs the waves. The pigmented epithelium replaces these pigments to ensure accurate vision. 

With a fluorescent dye, researchers are able to highlight different cells. The bipolar cells are pictured in green. They stimulate the optic nerve to communicate vision with the brain. They are called bipolar because they have an outward extension on each side. The first is the receiving end (dendrites), and the second is the communicating end (axons). 

For you to see, your brain has to convert light energy into electrical energy that it can understand. It does so with the retina. This inner layer of the eye contains multiple cells that enable vision. From bottom to top, it goes pigmented epithelium (purple), photoreceptors (green), bipolar and horizontal cells (blue green), bipolar and amacrine cells (blue green), and ganglion cells (red). 

For you to see, your brain has to convert light energy into electrical energy that it can understand. It does so with the retina. This inner layer of the eye contains multiple cells that enable vision. From bottom to top, it goes pigmented epithelium (purple), photoreceptors (green), bipolar and horizontal cells (blue green), bipolar and amacrine cells (blue green), and ganglion cells (red). 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts. 

The hippocampus is a seahorse-shaped section of the brain. It is responsible for the formation of memories and their consolidation into long-term memory. Fluorescent dyes highlight the different layers. This image was taken from a coronal cross-section, which divides the body into front and back parts.