Anion

Definition

An anion is a negatively charged ion that results from the gain of one or more electrons. In the context of Anatomy and Physiology, it is crucial for various functions including the transmission of nerve impulses and transport of substances across cell membranes.

Related terms

Cation:

A cation is a positively charged ion that results from the loss of one or more electrons.

Electrolyte: Electrolytes are minerals in body fluids that carry an electric charge, including both anions and cations.

Ionic bond: An ionic bond is a type of chemical bond formed through the electrical force between oppositely charged ions, such as anions and cations