A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
A diet higher in lean protein and less processed carbs, would be a positive change to prevent diabetes with exercise.
Answer:
The human muscular system is the machinery that drives athletic performance. Among their functions, the more than 600 skeletal muscles generate skilled movements and produce energy for sport-specific competition. ... These contractions pull on the bones of the skeleton to cause movement.
Explanation:
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Ok so this is about child nutrition right
