A.
The endurance of an athlete is dependent on his or her body's ability to uptake oxygen efficiently, a task carried out by the red blood cells.
Answer:
Golgi tendon organ
Explanation:Golgi Tendon Organ(GTO) (also called Golgi organ or neurotendinous spindle) is a sensory receptor organ that sense changes in tension of muscles.
They are located in the tendon close to the point of muscular attachment. Each Golgi tendons consist of a thin capsule of connective tissues that encloses a collagen containing fibre.
Golgi Tendon Organ is involved in the cerebellar regulation of movement and are activated by stretching or contraction of muscles
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Cardiorespiratory endurance is a measurement of how well your heart, lungs and muscles work together to keep your body active over an extended period of time. Exercisers can improve cardiorespiratory endurance by participating in a program of regular aerobic exercise.
