Review of the Anatomy of the Nervous System (Nursing)

00:01 So let's talk about this amazing thing we call the nervous system.

00:05 Okay, you've got a peripheral nervous system and a central nervous system.

00:10 So I want you to write for the peripheral nervous system.

00:13 These are nerves outside of the brain and spinal cord.

00:16 The central nervous system, write in your notes, brain and spinal cord.

00:22 So central nervous system goes right down the center of your body, your brain and your spinal cord.

00:29 Peripheral nervous system comes off the spine.

00:33 Now, nerves are bundles of special tissues and they carry signals between your brain and other parts of your body.

00:39 So when we're talking about nerve damage, this is what we're talking about being damaged.

00:45 Now, the peripheral nervous system is this network of nerves that connects to the spinal cord and then the spinal cord to various parts of the body and that's what we call the peripheral nervous system.

00:57 This is where you're going to see a lot of damage.

01:00 As the patient has diabetes over a longer period of time.

01:04 It's part of the progression.. Whoa.

01:06 Whoa, look at this.

01:08 How did we end up with a picture like this? Okay, take a deep breath.

01:15 This is not a spinal cord lecture.

01:17 Now. We've got a great series on the spinal cord, but I wanted to bring this picture in to show you.

01:23 This is why everyone's experience is a little bit different and why it's so intense.

01:28 Because I wanted you to see just a sample of some nerves.

01:33 This is a great example of the complexity of the wiring of our nervous systems.

01:39 So that's all I want you to take away from this.

01:41 That it's very complex. High glucose damages this very complex system.

01:47 And that's why the symptoms can be so different and so intense.

01:52 So, let's take a look at this drawing again.

01:54 Don't memorize these different parts, but I want you to think about neurons and nerves.

02:00 The neuron is a nerve cell.

02:02 Nerves are bundles of tissue that carry these signals between your brain and the other parts of your body.

02:09 Yeah, this is starting to sound familiar.

02:12 The signals send information about how things feel.

02:16 They help you move your body parts.

02:18 Control body functions, such as digestion.

02:22 When these are damaged we're going to have problems in all those areas.

02:26 Now pause for just a minute.

02:28 Look back through those three categories of nerve damage that we talked about.

02:32 Does this make sense that these signals are getting messed up? The information is not getting there to control things like, how to move your body parts.

02:42 That's why you fall.

02:43 Things that you feel.

02:44 Weird sensations, pain, burning, tingling, controlling your body functions, like digestion.

02:51 Ah, you get fuller quicker.

02:53 So an excellent use of your time would be to pause the video real quick, go back and review your notes on those three areas of damage and make sure that solid before you move forward.

03:10 Okay, welcome back.

03:12 Now a neuron is a nerve cell and a nerve is just a bundle of axons.

03:17 Now. I'm only going to ask you to look at one number in this picture.

03:20 It's number three.

03:22 There you go.

03:23 There's the axon.

03:24 So we're talking about the difference between neurons and nerves.

03:28 A neuron is a nerve cell, a nerve is a bundle of axons.