PhysiologyWeb Logo  Search

PhysiologyWeb Loading...

PhunnyPhysiology
Glossary of Physiology Terms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Search


Calcium
Abbreviation:
Ca2+

Definition:
Calcium (Ca2+) is a divalent cation. It plays an important role in physiological processes such as muscle contraction and synaptic transmission. Calcium is also an intracellular messenger.

The extracellular concentration of Ca2+ is about 2 mM. The intracellular concentration of Ca2+ is about 70 nM.






Posted: Wednesday, February 5, 2014
Last updated: Wednesday, February 5, 2014