− | Sodium is indispensable for the '''regulation of acid-base balance and osmotic pressure'''. Its other main role is maintaining the membrane potential in nerve and muscle tissues thereby facilitating the generation and transmission of electrical impulses. | + | Sodium is indispensable for the '''regulation of [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology|acid base balance]] and osmotic pressure'''. Its other main role is maintaining the membrane potential in nerve and muscle tissues thereby facilitating the generation and transmission of electrical impulses. |