News tagged with calcium ions

Related topics: protein

Scientists cast light on the brain's social cells

Picture yourself hovering over an alien city with billions of blinking lights of thousands of types, with the task of figuring out which ones are connected, which way the electricity flows and how that translates ...

Jun 24, 2014
popularity 4.3 / 5 (4) | comments 0

Amplifying communication between neurons

Neurons send signals to each other across small junctions called synapses. Some of these signals involve the flow of potassium, calcium and sodium ions through channel proteins that are embedded within the ...

Jan 17, 2014
popularity 4.8 / 5 (4) | comments 0 | with audio podcast

A faster vessel for charting the brain

Princeton University researchers have created "souped up" versions of the calcium-sensitive proteins that for the past decade or so have given scientists an unparalleled view and understanding of brain-cell ...

Jul 25, 2013
popularity 5 / 5 (4) | comments 0 | with audio podcast

Visualizing a memory trace

In mammals, a neural pathway called the cortico-basal ganglia circuit is thought to play an important role in the choice of behaviors. However, where and how behavioral programs are written, stored and read ...

Jul 12, 2013
popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Calcium

Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.

Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals.

This text uses material from Wikipedia licensed under CC BY-SA