PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Expansion of blood volume (hypervolemia) has been well documented in both cross-sectional and longitudinal studies as a consequence of endurance exercise training.
Detailed explanation-2: -Heat stress Exercising in hot weather accelerates fluid loss even more. Heat stress occurs when sweat can’t evaporate fast enough to keep the body sufficiently cool. Many of the symptoms occur as a result of excessive loss of body salts and water (dehydration).
Detailed explanation-3: -Skeletal muscle blood flow increases dramatically, while blood flow to other tissues, especially the abdominal viscera and kidneys, is reduced. During heavy exercise, the vast increase in cardiac output is directed almost exclusively to contracting skeletal and cardiac muscles.