Signals travel along an alpha motor neuron in the spinal cord 268 mph (431 km/h); the fastest transmission in the human body, according to Discover magazine. Sensory neurons react to physical stimuli such as light, sound and touch and send feedback to the central nervous system about the ...
Learn all about the human body's many systems and some of its individual organs, both vital and vestigial.
Just the Facts: The Human Body - The Nervous System DVDNest Family Entertainment
Explore the solar system, the home of planet Earth. Learn about suns and stars, the planets in the solar system, and how the solar system is part of the Milky Way galaxy. What Is the Solar System? Our solar system is made up of many parts. It's a combination of a single star and...
In fact, over 20% of the calories and nutrients we consume on a daily basis go straight to the brain, and it’s why we feel irritable and dozy if we don’t eat the right food. 2. Pain The brain is the central hub for the body’s complex nervous system, where it controls how we...
5. The Autonomic Nervous System Plays a Key Role in Digestion The autonomic nervous system controls peristalsis, the contraction and relaxation of muscle layers within the alimentary canal wall. Peristalsis is a key function in digestion; it literally gets the ball rolling. These involuntary contracti...
Stephen Porges’ 3 stages of the human nervous system How to make better decisions knowing the 3-way-fallback system: For a lot of us, we tend to make the best, most compassionate and harmonious decisions when we are in the first state of relaxed alertness. And yet, when we are in a...
Finally, unlike the web-like connections that are typical of chemical synapses between neurons in the central nervous system, LC neurons of a single subtype were discovered to form unique linear chain-like electrical connections with one another. This provides the first experimental clue into how el...
Weight of the human brain Number of brain cells Other cool facts Anatomy of the human brain Brain size and intelligence Left brain vs. right brain BRAIN Initiative The brain after death Additional resources The human brain is the command center for the human nervous system. It rec...
Human Body Facts For Kids Explore some amazing facts about the human body. We cover the body from top to toe! Learn all about the brain, the ear, taste, smell and so much more! Browse our topics below. Brain Breathing Ear and Hearing Eyes Digestive Syste