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exam two review questions
Terms in this set (26)
increased O2 consumption at maximal exercise is accomplished by changes in tidal volume and what?
What happens to stroke volume after long bout of exercise in the heat?
These neurons carry impulses from the spinal cord to the muscle fiber to initiate a contraction
efferent, motor, or gamma neuron
exercise performance is limited in those with emphysema due to
destruction of the alveoli
The ventilatory threshold coincides with the point at which lactate levels do what?
EDV will do this over the course of an exercise bout that is increasing in intensity
Following an endurance training program, the cardiac output at submaximal intensities will do what?
stay the same
This is the mechanism whereby increased stretch on the ventricle results in greater stroke volume
Blood leaves the heart to circulate throughout the body via this vessel
aerobic capacity (VO2 max) is defined as the product of cardiac output and what?
This nerve slows down heart rate
The sympathetic nervous system will do this to heart contractility
The golgi tendon organs monitor this
Asychronous recruitments of slow twitch muscle fibers delays the onset of this
during the first few weeks of strength training, increases strength development is the result of this adaption
increased acidity of the blood moves the O2 saturation curve in this direction
CO2 binds to this bad boy and is transported to throughout the blood stream
as the partial pressure of 02 decreases the percent oxyhemoglobin saturation does this
chemoreceptors in the carotid arteries stimulate increased respiration in response to what
In elite athletes desaturation may occur due to
reduced transit time
The percent of blood flow directed to the muscle at maximal exercise is
The respiratory control center of the brain
Resting membrane potential
This states that motor units are recruited from smallest to largest
oxygen transport molecule located in skeletal/cardiac muscle
the gradual increase in heart rate during steady state exercise due to loss of blood volume is called
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