It would be heart. I hope this helps
First off, if you are able you should purchase health insurance. Health care is very expensive. In some situations it could take a huge toll on your financial situation. If you are unable to purchase private insurance or insurance through your employer you should look into state (Medicaid) insurance program that helps with healthcare costs for people with limited income and resources. Not having health insurance could take a toll on your financial situation, in case of medical emergency or an accident, in my opinion, purchasing health insurance should be collaborative family decision as it would affect your entire family.
The human skeletal system provides protection for our internal organs, allows for movement and blood production.