Fats are an important dietary requirement that play a number of roles in the body. Fats transport fat-soluble vitamins in the body, such as . The body can't synthesize and must obtain it through dietary intake.

Vitamins A, D, E and K are fat-soluble vitamins.

Explanation:

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.