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 ...

Science of sleep quiz: How much do you know about sleep and dreams? The parasympathetic nervous system is a division of the autonomic nervous system, which controls bodily functions that occur ...

Functionally, the nervous system has two main subdivisions ... The sensory, or afferent, division receives signals from the periphery and carries these into the central nervous system.

Your nervous system is a network that sends signals between ... The 10th CN, called the vagus nerve or vagal nerves, is the main nerve in your PSNS. It includes almost 75% of the nerve fibers ...

The main response to norepinephrine is stimulation of ... the sympathetic nervous system and the parasympathetic nervous system The sympathetic division acts under physical activity or stress, while ...

The main symptoms are numbness, tingling, and being unable to move a part of your body. Many people with lupus have other nervous system problems, like headaches, depression, and anxiety. But doctors ...

Here are some key points about the central nervous system. More detail and supporting information are in the main article. The CNS consists of the brain and spinal cord. The brain is the most ...

The autonomic nervous system has two main branches: the sympathetic and parasympathetic. The , often known as the fight or flight system, prepares the body for action in response to physical or ...

Primary central nervous system (CNS) vasculitis is a rare, frequently misdiagnosed condition that affects the brain and spinal cord and is characterized by a variety of neurologic symptoms at ...