When lin receives a flu vaccination, it reduces the chance of him receiving the flu as well as the chance that his sister will get sick. his flu vaccination creates a(n)?

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.