Since smokers are not allowed to smoke within restaurants, office buildings, airports, schools, and many other places, far fewer people are being exposed to secondhand smoke. People with asthma and allergies to cigarette smoke are now able to breathe more easily as well. Children are no longer being exposed to secondhand smoke in spaces outside of their homes.
There's six main functions of the skeletal system
1 - Support
Provides structural support for the entire body.
2 - Protection
Surrounds soft tissue- ex. ribs and sternum protect the heart and lungs, - skull protects the brain.
3 - Movement
Skeletal muscle is attached to bone so it pulls on the bone when it contracts.
4 - Mineral homeostasis
Stores calcium and phosphorus--minerals are released into the blood when needed.
5 - Blood cell production
Red bone marrow produces red blood cells, white blood cells and other blood elements.
6 - Storage
Storage of minerals and lipids(fats)---yellow marrow stores fat --(found in long bones).