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Hand dermatome chart: Dermatomes: Anatomy and dermatome map

Dermatome Map & Example | Free PDF Download

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What Is A Dermatome Map?How To Use This Dermatome Map Template?Dermatome Map Example (Sample)Who Can Use these Printable Dermatome Maps (PDF)?Why Is This Template Popular With Clinicians?Benefits Of A Dermatome Map FAQsWhy Use Carepatron For Dermatome Map Software?

What Is A Dermatome Map?

A Dermatome Map is a clinical guide that shows the dermatome areas supplied by a single spinal nerve. From the Spinal cord, there are 31 pairs of spinal nerves that branch out roots to the skin. These areas have two-way functions; they deliver and receive sensational signals to the brain.

The 31 pairs of spinal nerves are spread out in your body based on the region of the spinal cord they are connected to. These dermatomes are divided into five groups:

  • Cervical nerves. These nerves originate from the neck and are numbered C1 through C8 in pairs.  
  • Thoracic nerves. These nerves originate from the spine going up to the torso and are number T1 through T12 in pairs. 
  • Lumbar nerves.  These nerves originate from the spine up to the lower back and are numbered L1 through L5 in pairs.
  • Sacral nerves. These nerves are like the lumbar nerves; they are connected with the sacrum, one of the bones found in the pelvis, and numbered S1 through S5 in pairs. 
  • Coccygeal nerves. This pair of nerves are located at the buttocks or from the coccyx or tailbone area.

The Dermatome Map follows a different pattern depending on the region where the spinal nerve is located. The locations of the dermatome reveal essential information that would help the diagnosis of the patient’s condition.

Printable Dermatome Map

Download this Dermatome Map and assess your client’s spinal injury.

Download TemplateDownload Example PDF

How To Use This Dermatome Map Template?

Step One. Download the PDF. 

Once the template is downloaded, decide whether to print it or use it digitally. The PDF is editable so that it can also be used on gadgets. Most clinics use tablets to document or store patient information. 

Step Two. Examine the patient. 

While the patient is being screened for pain or nerve damage, it is essential to keep the template close to identify where the patient may describe a strange or abnormal sensation. 

Step Three. Fill out the Template.

Mark the regions where the patient will be delineating an area. List all possible causes of this in the spaces for better documentation. Ensure that the information of the client is well noted. 

Step Four. Read the findings. 

Analyze the regions that were identified to have peculiar sensations. Draw information from the dermatomes that were found to be painful or damaged. This will then be referred for a specific examination for a thorough diagnosis. 

Step Five. Store the Template properly. 

Ensure that the template is complete and store it in a folder with all of the other documents of the patient if they had any previous consultations. 

Dermatome Map Example (Sample)

This map helps understand the patient’s condition by looking through the area of the dermatomes the patient is concerned about. This dermatome map example helps guide clinicians on the dermatomes that are affected, which causes the patient’s situation.

Download this Dermatome Map Example (Sample) here:

Who Can Use these Printable Dermatome Maps (PDF)?

This Printable Dermatome Map is a good guide for many medical specialists. Most of these professionals are closely working with physical therapy or neurology.

Here are the lists of the healthcare practitioners that may utilize this guide:

  • Clinicians
  • Clinical Neurologists
  • Physical Therapists
  • Physiotherapists 
  • Neurologists
  • Psychiatrists

Although it is not limited to these practitioners, it is good to know that the examiners or any professional who work closely with any physical injury that may cause neurological conditions may find this helpful template. It also helps medical students understand dermatome maps and be able to use this in practical examinations. It helps in the subjects of anatomy, neurology, and also in psychiatry.

Why Is This Template Popular With Clinicians?

This guide can be utilized in different practices. In the branches of medicine, it serves many purposes, especially in becoming a navigator of the root cause.

Clinicians have the following reasons why the Dermatomes Map serves them a lot of purposes: 

A reliable examination tool.  

In examining the patient, this tool help assess the condition of each dermatome and help understand the condition better. Once the source of the complaint is located, it already reveals much information to the clinician on how to proceed with the treatment. 

Great clue locator. 

The specific regions of each division of the dermatome indicate the possible conditions a patient is experiencing based on the tested sensation of the particular area being examined. For instance, when a dermatome is being screened for its sensation, say the torso area, the dermatome that is found to have specific sensation issues may reveal a lot about the patient’s condition. 

Delineates sensation. 

A dermatome map may help in standardizing the way how the patient communicates the pain or the sensation.  

Assists in psychological health. 

Once a dermatome area is found to have a specific condition or found to have damage, it is highly expected to direct or identify a poor psychological state. Those with osteoarthritis, neck pain or spinal concerns are reportedly or more likely to have a psychological issue. 

Benefits Of A Dermatome Map 

Better Accessibility 

Our Dermatome Map is both accessible in printed and digital formats. It can be accessed through PDF Viewer software and can also be downloaded. The file is already editable, so filling it out will be highly efficient. 

A great diagnostic tool

An easy access tool helps in easier administration of the screening. Since the PDF file can be accessed digitally, the dermatomes identified with sensation loss or function loss can easily be marked. 

An efficient sensation map 

Since it is easy to fill out, the sensation to each dermatome can also be lodged for better documentation. The map can specify the condition more organized way and find a better diagnosis of the condition the fastest way. 

Mental Health Assistant

Since the Dermatome map is all about spinal nerves, it also identifies the neurological and psychological conditions of the patient. More than determining the patient’s physical condition, the dermatome map also provides clues about the patient’s mental health. 

Easy to Use 

Our Dermatome Map makes it convenient for clinicians and other healthcare providers. Since it is accessible, its navigation and advanced digital capabilities make it user-friendly when administered through digital tools. Plot and note! That’s all it takes. 

Commonly asked questions

What are the general conditions that affect the dermatomes?

What are the tests that can detect problems with dermatomes?

What are the best treatments that can cure dermatome conditions?

Why Use Carepatron For Dermatome Map Software?

Carepatron is a platform for healthcare professionals to manage their clients. It enables you to manage appointments, online billing, payments efficiently, documentation of patient notes, and other tasks. The Dermatome Map template on Carepatron gives you more control over the form’s format and content, as well as the ability to store completed forms in an online database accessible from anywhere. Hundreds of other templates are available in the Carepatron template library, covering a wide range of forms, notes, and worksheets you may require when interacting with your patients.

What are the general conditions that affect the dermatomes?

What are the general conditions that affect the dermatomes?

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Dermatomes

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Explanation and location of 30 dermatomes – Drink-Drink

Contents

  • Dermatomes in context
    • Your spinal nerves
    • Your dermatomes
  • Where is each dermatome located?
    • Cervical spinal nerves
    • Thoracic spinal nerves
    • Lumbar spinal nerves
    • Sacral spinal nerves
    • Coccygeal spinal nerves

    9 0006

  • Diagram of dermatomes
  • Why are dermatomes important?
  • Conclusion

A dermatome is a skin area innervated by one spinal nerve. The spinal nerves help transmit sensory, motor, and autonomic information between the rest of the body and the central nervous system (CNS).

Why are dermatomes important? How many are there? And where can they be found? Keep reading as we answer these questions and more.

Dermatomes in context

Each of your dermatomes is supplied by one spinal nerve. Let’s take a closer look at both of these components of the body.

Your spinal nerves

The spinal nerves are part of your peripheral nervous system (PNS). Your PNS works to connect the rest of your body to your CNS, which is made up of your brain and spinal cord.

You have 31 pairs of spinal nerves. They form from nerve roots that branch off from the spinal cord. The spinal nerves are named and grouped according to the region of the spine they are associated with.

Five groups of spinal nerves:

  • Cervical nerves. There are eight pairs of these cervical nerves, numbered C1 to C8. They come from your neck.
  • Thoracic nerves. You have 12 pairs of thoracic nerves, which are numbered T1 through T12. They occur in the part of the spine that forms the torso.
  • Lumbar nerves. There are five pairs of lumbar spinal nerves, labeled L1 to L5. They come from the part of the spine that forms the lower back.
  • Sacral nerves. Like the lumbar spinal nerves, you also have five pairs of sacral spinal nerves. They are connected to your sacrum, which is one of the bones in your pelvis.
  • Coccygeal nerves . You have only one pair of coccygeal spinal nerves. This pair of nerves originates in the coccyx or coccyx region.

Your dermatomes

Each of your dermatomes is connected to one spinal nerve. These nerves transmit sensations, such as pain, from a specific area of ​​the skin to the CNS.

There are 30 dermatomes in your body. You may have noticed that this is one less than the number of spinal nerves. This is because the C1 spinal nerve usually does not have a sensory root. As a result, dermatomes begin with the C2 spinal nerve.

Dermatomes have a segmented distribution throughout the body. The exact pattern of the dermatome can vary from person to person. There may also be some overlap between adjacent dermatomes.

As your spinal nerves emerge laterally from your spine, the dermatomes associated with your trunk and core are distributed horizontally. When viewed on a body map, they look a lot like stacked discs.

The dermatome pattern on the limbs is slightly different. This is due to the shape of the limbs compared to the rest of the body. Typically, dermatomes associated with your limbs run vertically along the long axis of the limb, such as down the leg.

Where is each dermatome located?

Your dermatomes are numbered according to which spinal nerve they correspond to. Below we will describe each dermatome and the region of the body it is associated with.

Be aware that the exact area that the dermatome can cover may vary from person to person. Some overlap is also possible. Thus, consider the diagram below as a general guide.

Cervical spinal nerves

  • C2: lower jaw, occiput
  • C3: upper neck, occiput
  • C4: lower neck, upper shoulders
  • C5: collarbone region, upper shoulders 90 006
  • C6: arms, outer hand side, thumb
  • C7: upper back, back of hand, index and middle fingers
  • C8: upper back, inside hand, ring and little fingers

Thoracic spinal nerves

  • T1: upper chest and back, armpits, front of the arm
  • T2: upper chest and back
  • 90 318 T3: upper chest and back
  • T4 : Upper part of the chest (nipples) and back
  • T5: middle of the chest and back
  • T6: middle of the chest and back
  • T7: middle of the chest and back
  • T8: upper abdomen and mid back
  • T9: upper abdomen and mid back
  • T10: abdomen (navel area) and mid back
  • 900 03 T11: belly and middle back

  • T12: lower abdomen and mid back

Lumbar spinal nerves

  • L1: lower back, thighs, groin
  • L2: 90 319 lower back, anterior and inner thighs
  • L3: lower back, anterior and inner thigh
  • L4: lower back, anterior thigh and calf, knee area, inner ankle
  • L5: lower lower back, front and outer lower back, upper and lower foot, first four toes

sacral spinal nerves

  • S1: lower back, posterior thigh, back and inner tibia, last toe
  • S2: buttocks, genitals, hamstrings and calves
  • S3: buttocks, genitals
  • S4: buttocks
  • S5: buttocks

Coccyx-spinal nerves

buttocks , coccyx area

Diagram of dermatomes

Why are dermatomes important?

Dermatomes are important because they can help evaluate and diagnose various conditions. For example, symptoms occurring along a particular dermatome may indicate a problem with a particular nerve root in the spine.

Examples of this include:

  • Radiculopathy. This refers to conditions in which a nerve root in the spine is compressed or pinched. Symptoms may include pain, weakness, and tingling. Pain in radiculopathies may follow one or more dermatomes. One form of radiculopathy is sciatica.
  • Shingles. Shingles is a reactivation of the varicella zoster virus (chickenpox) that is dormant in the nerve roots of your body. Shingles symptoms such as pain and rash occur along the dermatomes associated with the affected nerve root.

Conclusion

Dermatomes are areas of skin associated with a single spinal nerve. You have 31 spinal nerves and 30 dermatomes. The exact area each dermatome covers can differ from person to person.

The spinal nerves help convey information from other parts of the body to the central nervous system.