Peripheral Neuropathy Symptoms Resolved DavisSpineInstitute
When you first presented to the office, youpresented with chronic low back, leg pain, and neuropathy pain in your legs and feet.Your post surgical fusion patient and you had utilized a lot of different forms of therapyin pain management before coming to our office for help. How did you do with our therapyand how are you feeling today? Great, I don't have the pain down my leg, I have feelingin my feet now, I don't have that constant pain in the back. Well congratulations. We'revery proud of your results, and we're very proud to have you has a patient. Thank you.
Peripheral Nervous System Crash Course AP 12
When it comes to the nervous system, or justyour body in general, let's face it: your brain gets all the props. And it deserves those props! It's a complicated,and crucial, and sometimes crazy boss of an organ. But your brain would be pretty useless withouta support team that kept it connected to the outside world. Because frankly, like any leader, the moreisolated your brain gets, the weirder it gets. Put a person in a watery, pitchblack sensorydeprivation tank, and you'll see the brain do some really weird stuff. Without a constantflood of external information, the brain starts
to confuse its own thoughts for actual experiences,leading you to hallucinate the taste of cheeseburgers, or the sound of a choir singing, or the sightof pink stampeding elephants. It's your peripheral nervous system thatkeeps things real, by putting your brain in touch with the physical environment around you,and allowing it to respond. This network snakes through just about every part of your body,providing the central nervous system with information ranging from the temperature, to the touchof a hand on your shoulder, to a twisted ankle. The peripheral nervous system's sensorynerve receptors spy on the world for the central nervous system, and each type responds todifferent kinds of stimuli.
Thermoreceptors respond to changes in temperature.photoreceptors react to light, chemoreceptors pay attention to chemicals, and mechanoreceptorsrespond to pressure, touch, and vibration. And then we've got specialized nerve receptorscalled nociceptors that, unlike those other receptors, fire only to indicate pain, whichis the main thing I want to talk about today. Because, as unpleasant as a stick in the eyeor tack in the foot may be, pain is actually a great example of where everything we've talkedabout over the last few weeks all comes together, as we trace a pain signal through your nervoussystem, from the first cuss to the Hello Kitty band aid. By the end of this episode of Crash CourseAnatomy Physiology you'll never think
of a stubbed toe, pounding headache, or burnedtongue the same way again. Most people go to great lengths to avoid pain,but really, it's an incredibly useful sensation, because it helps protect us from ourselves,and from the outside world. If you're feeling physical pain, it probablymeans that your body is under stress, damaged, or in danger, and your nervous system is sendinga cease and desist signal to stop twisting your arm like that, or to back away from that bonfire,or please seek medical attention, like, RIGHT NOW. So in that way, pain is actually good foryou that's why it exists. I'm not saying it's pleasant, but if you've ever wishedfor an XMenlike power to be impervious to
pain, I've gotta say, that is one foolishmonkey's paw of a wish. Just ask Ashlyn Blocker. She's got a geneticmutation that's given her a total insensitivity to any kind of pain. And as a result, she'sabsentmindedly dunked her hands in pots of boiling water, run around for days without noticingbroken bones, and nearly chewed off her own tongue. Luckily, such congenital conditions are veryrare. The rest of us have a whole nervous system dedicated to making sure our bodies react witha predictable chain of events at the first sign of damage. Like say you just wake up and you're extraordinarilyhungry for some reason, so you run downstairs to grab some clam chowder, but you didn't putany shoes on and suddenly you're like, â€œYOWW!â€�
There's a tack, fell out of the wall, andyou stepped right on it of course. Your foot immediately lifts off the ground,and then you're assuring your dog that you're not yelling at her, you're just yelling,and then you limp over to the couch, and sit down, and you pull up your foot, and removethat spiny devil from your flesh. You want to talk physiology? So what exactlyjust happened in your body? Well, the first step was a change in yourenvironment that is, a stimulus that activated some of your sensory receptors. In this case, it was a change from the probablycompletely ignored feeling of bare skin on
Nerves 3 Spinal Nerves
Okay, this is really exciting,so exciting, because we're going to lookat all of our spinal nerves. We're going to look at all ofthese guys right here. And how many of themdo you think we have? Well, we actually have 31pairs of spinal nerves, and I hope you rememberthat our spinal nerves actually travelout of the spinal they travel awayfrom the spinal cord,
and they have to getout of that main hole, in this hole right here, the spinal cord is travelingthrough that hole, and our spinalnerves have to get out of there so that they can go into theperiphery and do their thing. And, to get out,they have to travel between those intervertebral foramina. This is the bodyof my vertebra vertebra
or vertebra depending on, you know, where you wantto place your emphasis and you can imaginethat the hole, the vertebral foramen,is approximately right here, and through thatvertebral foramen is your entire spinal cord. Do you agreethat if I was a rock star I know you think I am but,
every now and then,not so much but if I was, do you agree that Icould actually draw my little crosssection of spinal cord righton my spinal cord? I could cut it in halfand draw it. And then, do you agreethat I actually would have, you know,a dorsal root ganglion
I just made that.It's supposed to be one. There's my dorsal root ganglion, and it's actuallygoing to combine and form a spinal nerve do you follow what I amdoing right here? I'm trying to show you that allthis is is my big column of spinal cord running throughthe vertebral column and then, my actual spinal nerve,
which we are totallycomfortable with. We've seen these,we've gone in, we've gone out, we've taken our spinal nerve, we've named it,we've circled it, we've split it into an anteriorramus and a posterior ramus, that's going to come out throughthese intervertebral foramina. Those were structures that we learned alreadyin the spinal cord.