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.
Just go look on some of the questions on Bradley I'm sure you'll find the answer there
Answer:
Blue Screen's
Explanation:
Looking at the Tv to long can change ur brain physically and mentally.
And Could change ur eyesight.
When u play games it gives off Harmons when ur doing drugs
And u get stressed without knowing it
Answer:
Cognitive neuroscience is the interdisciplinary study of how brain activity is linked with our mental processes.
Explanation:
