Speak your mind but never rudely look for a different approach.
Answer:
Cardiorespiratory endurance is measured by maximum oxygen uptake (VO2 max) and how it's used during intense exercise. Higher amounts of oxygen uptake show that you're using more oxygen and that your cardiorespiratory system is functioning efficiently.
The axial skeleton includes the skull, vertebrae, the sacrum and coccyx, and ribs.
Think of it as an axle, so everything rotates around the center of an axle right? Your whole body rotates around those parts, so imagine that.