Sentences with phrase «surround brain neurons»

Astrocytes are star - shaped cells in our brain that surround brain neurons, and neural circuits, protecting them from injury and enabling them to function properly — in essence, one of their main roles is to «baby - sit» neurons.

Not exact matches

when your brain dies and all the neurons decay — the electrochemical energy which once coursed through them causing them to work obeys the laws of thermodynamics and dissipates out into the surrounding system.

Neurons in the shell surrounding the established vocal centers of the parrot brain play a part in vocal learning and other complex motor behaviors, resolving controversies over the size of brain areas involved in song and speech imitation.

A toxic Alzheimer's protein can spread through the brain — jumping from one neuron to another — via the extracellular space that surrounds the brain's neurons, suggests new research from Columbia University Medical Center.

Instead of activating a small sphere of surrounding neurons as expected, the electrodes caused sparse strings of neurons to fire across the brain.

«The octopus nervous system is organized in a totally different way from ours: The central brain surrounds the esophagus, which is typical of invertebrates, but it also has groups of neurons in the arms that can work relatively autonomously, plus huge optic lobes involved in vision,» said Daniel Rokhsar, who co-led the project along with Clifton Ragsdale, of the University of Chicago.

Pavlovian memories Addictive drugs cause dopamine neurons, which synthesize and store the neurotransmitter dopamine, to release it, signaling to other brain areas to take note of the context surrounding the drug — the better to replicate the experience in the future.

Neurons are born in two areas: a memory - and - learning center called the hippocampus and the subventricular zone, which surrounds the two vacant spaces in the middle of the brain.

In 1898, Italian biologist Camillo Golgi saw something odd in the slices of brain tissue he examined under his microscope: weblike lattices surrounding many neurons.

But it also damages neurons that don't lie directly in its path, because it is trailed by a pressure wave that transfers the energy of bullet into the surrounding brain tissue.

Neuroscientists have long believed that scar tissue formed by glial cells — the cells that surround neurons in the central nervous system — impedes damaged nerve cells from regrowing after a brain or spinal cord injury.

However, instead of concentrating on the neurons themselves, she focuses her research on the network surrounding and supporting the cells: the brain's vascular and immune system.

If he can determine how to speed up engulfment of dead tumor cells from brain tissue, it is his hope to reduce the harmful inflammation that causes death of surrounding neurons.

In samples from the brains of humans, cats, and monkeys, she saw patches containing high concentrations of opioid receptor - bearing neurons, surrounded by a dense matrix of nerve fibers rich in acetyl cholinesterase.