Answer: Ligaments
Explanation: Lean body mass is simply everything that's is not fat. This includes your bones, organs, muscles, ligaments, tendons and fluids. So the answer to your question is Ligaments.
He could be removed from the athletic team.
Also:
Acne
Breast development in men.
<span>myocardial infarction (Heart attack)</span>
Liver cancer
<span>Constricted air passages and higher air pressure in the lungs at maximum inhalation</span>
Peripheral nervous system (PNS)
Once a year or possibly for a physical when you are doing a sport or camp. Hope this helps!