So this means you shouldnât check your car seat as luggage. According to to a document prepared by the CPSTs and CRSTs in the Car Seats For The Littles Facebook Page: If you must check a carseat, put it in its original packaging with padding in the box. Or maybe another box with padding.
Sodium and Potassium. Sodium and potassium play essential roles in muscle contraction because of their importance in nerve function. Your nervous system communicates with your muscles through structures called neuromuscular junctions, and the activation of a nerve triggers muscle contraction.
Electrolytes are especially important for normal contraction of skeletal and cardiac muscle fibers. Without the appropriate balance of electrolytes such as potassium and sodium, heart contractions become abnormal and the risk of heart attack increases.eart contractions -- also known as cardiac action potentials -- have five phases. During phase 0, heart cells become less permeable to potassium and voltage-gated sodium channels open, producing rapid depolarization and contraction.