Electrical signals called travel along the plasma membrane of a neuron and stimulate the release of chemicals called that are then used to communicate with other cells

bru what tyep of qus is dis

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.