While the central nervous system comprises neurons in the brain and spinal cord, the sympathetic, or peripheral, autonomic nervous system consists of neurons in ganglia (groups or clusters ...

W e modern humans love a long hot soak but linger too long and something a bit gross happens: the skin on your hands wrinkles ...

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 ...

The heart has long been thought to be controlled solely by the autonomic nervous system, which transmits signals from the brain. The heart's neural network, which is embedded in the superficial ...

along with the sympathetic nervous system, constitutes the autonomic nervous system. Normally, sympathetic and parasympathetic nerves act synergistically and together create the state of ...

Cardiac arrhythmias are particularly common if cold immersion includes the face, breath holding and coactivation of the cold shock (sympathetic autonomic nervous system response) and diving response ...