The protective layer protecting our brain is our skull. For our hearts, we have the rib cage.
medulla
MEDULLA RBALVAREZ
Medulla
it protects internal organs such as lungs brain and heart.
Brain is covered from all sides by skull bones. It has a dome shape from above and sides. This shape can handle trauma exceptionally well. It is protected by bones of face from below. Because of this it is most protected part in body.
left part of heart
because the heart is the second most important muscle/organ in the body, it is needed to move blood around your body, if it stops/the blood doesn't move and will clot over time, its the same as why the brain is protected by the skull, it's a vital part of you and is very fragile
the brain stem is small part of the brain and the most important one because it keeps you breathing,keep your heart beating and also keep food moving through your digestive system.
your heart and brain but really every part of you body is very important
the cerebelum it is in charge of your breathing and other important voluntary actions needed to induce life.
The most vital parts of the body, the brain and spinal cord, are encased in protective bones; the cranium and the vertebral column. The other important organs, the heart and the lung are protected by the ribs and the sternum.
The brain. The cranium is the part of the skull that encloses and protects the brain.