Nervous System Explained In Simple Words
Science ABC
Jan 3, 2024 11:00
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Chapters
What is the nervous system and how does it work? In this video, we explain the nervous system in simple words — from the central nervous system (brain and spinal cord) to the peripheral nervous system, somatic vs autonomic control, sympathetic (fight-or-flight) vs parasympathetic (rest-and-digest), neurons, glial cells, and the reflex arc. Learn how 86 billion neurons work like telephone wires communicating across your body, and how a reflex happens faster than the blink of an eye.
Whether you're a biology student preparing for an anatomy exam, or curious about the system that controls literally everything your body does, this beginner-friendly animated explainer covers it all.
CHAPTERS:
Video on Neurons: https://youtu.be/HUuUUJktL6E
Video on Glial Cells: https://youtu.be/FaeFaiveb_Q
WATCH NEXT:
▶ What Are Neurons and How Do They Work? – https://youtu.be/HUuUUJktL6E
▶ Immune System Explained – https://youtu.be/PzunOgYHeyg
▶ Homeostasis Explained – https://youtu.be/S0WLVFKG2WI
KEY TOPICS COVERED:
• Central nervous system (CNS): brain and spinal cord as master controllers
• Peripheral nervous system (PNS): sensory and motor divisions
• Somatic (voluntary) vs autonomic (involuntary) nervous system
• Sympathetic (fight-or-flight) vs parasympathetic (rest-and-digest)
• Neurons: 86 billion wires with dendrites, cell bodies, and axons
• Glial cells: oligodendrocytes, Schwann cells, astrocytes, and microglia
• The reflex arc: 3 neurons, 80-120 milliseconds, faster than a blink
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All videos on human body: https://www.youtube.com/playlist?list=PLooF83S-sY9Barnz1a4pzH8rqO3dIgPYZ
REFERENCES:
https://www.ncbi.nlm.nih.gov/books/NBK482431/
https://training.seer.cancer.gov/brain/tumors/anatomy/neurons.html
Voice Over: John Staughton (https://www.fiverr.com/jswildwood)
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Science & Technology
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