What Is the Nervous System? Your nervous system is your body's main communication system. It sends messages from your brain to the rest of your body and helps you respond to changes inside and ...

Save guides, add subjects and pick up where you left off with your BBC account. Heart Rate Increase in rate of contraction of cardiac muscle - cardiac output increases Decrease in rate of ...

A chronically dysregulated nervous system can lead to both physical and mental symptoms. Here's what to look out for.

The sympathetic nervous system becomes more active during times of stress, and for some people, this activation can become excessive or prolonged.

It allows your body to run smoothly without conscious effort. The PNS is made up of two divisions: the somatic nervous system ...

Neuroscience examines the structure and function of the human brain and nervous system. Neuroscientists use cellular and molecular biology, anatomy and physiology, human behavior and cognition ...

However, research on the sensory system of the ocular surface has focused mainly on the peripheral axons of the trigeminal ...