Ablood sample contains several different types of cells. true or false

TRUE

A blood sample contains several different types of cells, each of which contains different combinations of specific ions and molecules.

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.