What is the Nervous System?

What is the Nervous System?

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so I’m going to talk about the nervous system it’s part of a communication system in the body and there’s two main communication systems we have the nervous system and then over here we have the hormone system and the difference is that the communications travel through the nerves with the nervous system and their electrical impulses and then the endocrine system uses hormones as its communication particles and they travel through the blood okay so let’s first talk about the two main parts of the nervous system we’re just going to stick with nervous system now not endocrine system we have the peripheral nervous system which is outside the central nervous system so we have a central nervous system which is the brain in the spinal cord and then we have everything outside those are the two main systems so central nervous system controls and coordinates every single body function and it does it through pre-program like like almost like genetic blueprints that have messages that that send signals to keep the body in a survival mode so everything works and then the peripheral nervous system has two parts one is the somatic which somatic means body in Latin but the somatic nervous system controls all the muscles okay so skeletal muscles and smooth muscles so that’s what that system is and then we have another part of the peripheral nervous system called the autonomic nervous system this is what I want to spend a little bit more time on autonomic is is a term a Greek term for independent because it’s almost like this can work independent of this over here it has its own kind of microchips or mini brains because it can run from those things called ganglia remember the ganglia of studying about that those are like many little nerve centers that are down your spinal column and you have plexuses of nerves which are like ganglia in the abdomen – like the solar plexus and all these different wiring so to speak really simple when you think about it there’s there’s a lot of wires that come out of the brain and they either go to the muscles or they go to the autonomic nervous system which controls and coordinates glands and organs and the sympathetic nervous system is kind of like the on switch so it activates things and then you have the para sympathetic means it’s kind of like an off switch and the parasympathetic controls more rest and digestion and the sympathetic is more of the flight-or-fight I guess a couple little background pieces of information would be to describe it like let’s say for example you’re going to run upstairs and if you did not have your body adapting to that sudden shift and change in gravity running up the blood wouldn’t get up to your brain because when you run it fast all the Bloods going to go down to your feet and you will pass out so in order for the body to adapt to that change in elevation and stress the sympathetic nervous system kicks in there pumps adrenaline and pushes the blood up to the brain and it doesn’t on a gradient so if the person has weak sympathetics they won’t be able to react towards stress they won’t be able to prepare the body for a stressful State and that’s what the sympathetic nervous system does so the sympathetic nervous system is if you can vision being chased by a tiger you would have to increase blood flow to the muscles you’re going to have to increase brain acuteness and awareness you’re going to have to release dump a lot of sugars for the muscles to use as fuel because you’re not going to have time to burn five so all those reactions of adapting the body to either running away or fighting would be the sympathetic nervous system now the opposing system would be the parent setting so once you run up to the top of the the stairs your blood pressure has to return and come down so this is the recovery system the parasympathetic kicks in when you’re at rest and when you’re sleeping so that’s when everything actually so it works hard at calming you down the parasympathetic is where you burn all the fat when you’re sleeping right it’s a calming rest and then that’s when you digest when you are in a sympathetic mode the the parasympathetic kind of shuts down and to that degree it affects it kind of blocks your reproductive system because when you’re chased by a tiger you don’t need to have a baby or something you know to get pregnant but when you’re actually being chased by a tiger you also don’t need to digest so in other words when you kick in the sympathetic digestion shuts off reproductive shuts off sleeping shuts off but when you’re in parasympathetic everything is chilled out you’re recovering your body is adapting to things so the whole goal of this system is to maintain something called homeostasis now what is homeostasis that is the a body’s ability to adapt to some type of environmental situation or change or stress so the inside of your body is adapting to the outside to maintain equilibrium okay to a constant level so in the body there’s all these certain conditions that our body kind of stays in equilibrium like let’s say temperature temperature is 98.6 the pH of your blood is seven point three four or seven point three three four one of the two the pH of your urine should be 6.0 the blood pressure should be 120 over 80 the pulse rate should be 72 these are all equilibrium things that your body’s trying to maintain your blood glucose should be 100 exactly well the autonomic nervous system keep all these adapting so if you actually go outside and you actually get cold your body heats up if you’re if you run up stairs your blood pressure will adapt and then the parasympathetic will keep bringing it down to that equilibrium so we get all these body functions that the autonomic nervous system controls and it controls it not necessarily on an on switch or an off switch but more like a dimmer switch so there’s slow gradient approaches to this system the Missis system so let’s say you’re going for a mild jog well this thing might be kicked in but you have this one at the same time so they’re kind of like two dimmer switches that kind of on a gradient this will increase and this will increase depending on the level of effort or change it occurs so if you see your child your baby underneath the car it’s going to be 100% sympathetic you’re going to lift that car off the baby but if you just see like a little roach that you want to kill you might have like 10% sympathetic and mostly parasympathetic so really it’s not on-off switch is kind of like a gradient approach and then there’s an enteric system right here which is the digestive system so that’s the other the third autonomic nervous system section enteric which is digestion and this has just as many neurons and nerve nerves nerve endings as you would have in your spinal column and so this system is amazing because it it can work on its own and it controls like a mesh around the colon to actually allow it to pump it’s called peristalsis or helping it become mobile along the 3031 feet of intestine so this is what that system actually does so that’s pretty much the basics of the different systems and then in the next video I’m going to show you how we measure the autonomic nervous system

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What is the Nervous System?

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The Nervous System is the part of a body that coordinates the voluntary (conscious) and involuntary (unconscious) actions of the body and sends signals between different parts of the body. It consists of two main parts, the central nervous system (CNS — brain and spinal cord) and the peripheral nervous system (PNS — everything else apart from the brain and spinal cord).
Central Nervous System (CNS)
CNS is the part of the nervous system that integrates the information that it receives from the environment, and coordinates the activity of, to all parts of the body. It consists of the brain and the spinal cord.
Peripheral Nervous System (PNS)
PNS is the part of the nervous system consisting of the nerves outside of the brain and spinal cord. The main function of the PNS is to connect the central nervous system (CNS) to the limbs and organs, essentially serving as a communication relay going back and forth between the brain and the extremities. The PNS consists of 2 parts: the somatic nervous system (controlling muscle) and the autonomic nervous system (controlling gland and organs).
Somatic Nervous System (SNS)
This part of the PNS controls voluntary (conscious) control of body movements via muscles and skin.
Autonomic Nervous System (ANS)
The ANS is the part of the peripheral nervous system (outside the brain and spinal cord) that acts as a control system, functioning mostly below the level of consciousness (involuntary or automatic), and controls visceral (organ and gland) functions. The ANS innervates every organ and gland in your body.
The ANS affects heart rate, digestion, respiration rate, salivation, perspiration, diameter of the pupils, urination, and sexual arousal.
The ANS maintains homeostasis of the body.
Homeostasis is the adaptation of the internal body functions to the outside physical environment.
There are 3 parts: Sympathetic system is located at T1-T12 and inside the adrenal gland (adrenal medulla). The Parasympathetic system is located at C1 and in the sacrum area. The Enteric
(digestive) system is located in the abdomen.
Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, and prescription or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. The Health & Wellness, Dr. Berg Nutritionals and Dr. Eric Berg, D.C. are not liable or responsible for any advice, course of treatment, diagnosis or any other information, services or product you obtain through this video or site.
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