Complexity
The human nervous system is incredibly complex, with an estimated 100 billion neurons and trillions of connections, known as synapses, between them.
Speed
Nervous system impulses travel at an astonishing speed of up to 268 miles per hour.
Brain’s Power
The human brain has an incredible processing power, capable of performing around 100,000 trillion calculations per second.
Size and Weight
The human brain weighs approximately three pounds (1.4 kilograms) and has an average volume of around 1,130 cubic centimetres.
Reflex Actions
Reflexes, like pulling your hand away from a hot surface, are involuntary actions processed by the spinal cord without involving the brain.
Sensory Reception
The nervous system receives and processes information from various sensory organs, such as the eyes, ears, nose, tongue, and skin, enabling us to perceive the world around us.
Electric Signals
Neurons communicate through electrical impulses that travel along their axons, allowing rapid transmission of information.