These contract and expand in response to electrical impulses from the nervous system. Pacemaker cells generate electrical impulses, or action potentials, that tell cardiac muscle cells to contract ...

Heart Rate Increase in rate of contraction of cardiac muscle - cardiac output increases Decrease in rate of contraction of cardiac muscle - cardiac output decreases Breathing Rate Smooth muscle of ...

Cardiovascular system Cardiac hypertrophy ... your biceps will show muscle hypertrophy. Cardiac hypertrophy is where the ventricle wall gets larger or thickens as a result of exercise.

Researchers at the University of Toronto's Institute of Biomedical Engineering have found that studying blood flow in leg ...

Rhesus macaques’ heart functions improved using the technique, while preliminary results suggested similar effects on a person with advanced cardiac ... s immune system. Muscle implants face ...

Cardiac amyloidosis is a serious disease in which abnormal proteins (amyloids) accumulate in the heart muscle and impair ... now developed and tested an AI system that can be used to automatically ...

Newborns with heart complications can rely on their newly developed immune systems to regenerate cardiac tissues, but adults aren't so lucky. After a heart attack, most adults struggle to regenerate ...

Understanding why newborns, but not adults, can regenerate the heart could lead to treatments that "reprogram" adult ...