What are components of health realted fitness and explain what each of them mean'?

They are heart and lung endurance or cardiovascular endurance, muscular strength, muscular endurance, flexibility, and body composition.
Muscular Strength is the amount of force you can put forth with your muscles. It is often measured by how much weight you can lift.
Flexibility is the ability to use your joints fully.
Heart and lung endurance or cardiovascular endurance is the ability to exercise the entire body for long periods of time. 
Body Composition is the percentage of body weight that is fat compared to other body tissue, such as bone and muscle.
Muscular Endurance is the ability to use the muscles, which are attached to the bones, many times without getting tired. 

Habit 1: be proactive  habit 2: begin with the end in mind  habit 3: put first things first  habit 4: think win-win  habit 5: seek first to understand, then to be understood  habit 6: synergize  habit 7: sharpen the saw 

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.