NU621 Unit 6 DQ 1: three motor neurologic disorders
Describe three neurologic disorders that alter motor function, explain the pathophysiologic mechanism and expected manifestations of each, present the genetic factors contributing to one of them, and provide a plan for educating colleagues and patients about one.
Editorial process
Last reviewed · August 13, 2026
Choosing three that are not the same disorder
The selection is the part of this post that decides its quality, and it happens before you write anything. Motor function can fail at several distinct levels — upper motor neuron, lower motor neuron, the basal ganglia, the neuromuscular junction, the myelin sheath, the muscle itself — and choosing three disorders that fail at different levels lets you demonstrate the range the question is testing. Parkinson disease as a basal ganglia disorder of dopaminergic degeneration, multiple sclerosis as demyelination of central white matter, and amyotrophic lateral sclerosis as combined upper and lower motor neuron loss give you three genuinely different mechanisms producing three recognisably different clinical pictures. Myasthenia gravis, failing at the neuromuscular junction, works equally well. Three disorders drawn from the same level produce one explanation repeated, and the manifestations section becomes almost identical each time, which is exactly the weakness the question is built to expose.
The instruction to correlate manifestations with mechanism carries the marks, so make the link explicit rather than adjacent. Bradykinesia, rigidity and resting tremor follow from loss of nigrostriatal dopamine and the resulting imbalance in basal ganglia output; the relapsing, anatomically scattered deficits of multiple sclerosis follow from demyelinating lesions disseminated in space and time; the combination of spasticity and hyperreflexia with fasciculation and wasting in amyotrophic lateral sclerosis is the direct signature of both motor neuron populations being lost together. For the genetics section, pick whichever of your three has the clearest heritable component and be specific — the C9orf72 hexanucleotide repeat expansion and SOD1 mutations in familial amyotrophic lateral sclerosis, or LRRK2 and GBA variants in Parkinson disease — rather than saying that genetic factors play a role. Give the inheritance pattern and, where the literature supports it, the proportion of cases the variant accounts for, because that is what turns a gene name into a clinically useful statement.
Likely learning objectives
Inferred from the brief — check these against your own rubric.
- 01Distinguish the anatomical levels at which motor function can be impaired.
- 02Explain the pathophysiologic mechanism of three distinct neurologic disorders.
- 03Correlate clinical manifestations with the mechanism that produces them.
- 04Identify specific genetic factors contributing to a named neurologic disorder.
- 05Design education appropriate to two different audiences from one evidence base.
Read the full question
Review every instruction before using the planning guidance that follows.
Course-wide instructions that accompany this question
ADDITIONAL INSTRUCTIONS FOR THE CLASS Discussion Questions (DQ) Initial responses to the DQ should address all components of the questions asked, include a minimum of one scholarly source, and be at least 250 words. Successful responses are substantive (i.e., add something new to the discussion, engage others in the discussion, well-developed idea) and include at least one scholarly source. NU621-8D Unit 6 DQ 1 One or two sentence responses, simple statements of agreement or “good post,” and responses that are off-topic will not count as substantive. Substantive responses should be at least 150 words. I encourage you to incorporate the readings from the week (as applicable) into your responses. Weekly Participation Your initial responses to the mandatory DQ do not count toward participation and are graded separately. In addition to the DQ responses, you must post at least one reply to peers (or me) on three separate days, for a total of three replies. Participation posts do not require a scholarly source/citation (unless you cite someone else’s work). Part of your weekly participation includes viewing the weekly announcement and attesting to watching it in the comments. These announcements are made to ensure you understand everything that is due during the week. APA Format and Writing Quality Familiarize yourself with APA format and practice using it correctly. It is used for most writing assignments for your degree. Visit the Writing Center in the Student Success Center, under the Resources tab in LoudCloud for APA paper templates, citation examples, tips, etc. Points will be deducted for poor use of APA format or absence of APA format (if required). Cite all sources of information! When in doubt, cite the source. Paraphrasing also requires a citation. I highly recommend using the APA Publication Manual, 6th edition. Use of Direct Quotes I discourage overutilization of direct quotes in DQs and assignments at the Masters’ level and deduct points accordingly. As Masters’ level students, it is important that you be able to critically analyze and interpret information from journal articles and other resources. Simply restating someone else’s words does not demonstrate an understanding of the content or critical analysis of the content. It is best to paraphrase content and cite your source. LopesWrite Policy For assignments that need to be submitted to LopesWrite, please be sure you have received your report and Similarity Index (SI) percentage BEFORE you do a “final submit” to me. Once you have received your report, please review it. This report will show you grammatical, punctuation, and spelling errors that can easily be fixed. Take the extra few minutes to review instead of getting counted off for these mistakes. Review your similarities. Did you forget to cite something? Did you not paraphrase well enough? Is your paper made up of someone else’s thoughts more than your own? Visit the Writing Center in the Student Success Center, under the Resources tab in LoudCloud for tips on improving your paper and SI score. Late Policy The university’s policy on late assignments is 10% penalty PER DAY LATE. This also applies to late DQ replies. Please communicate with me if you anticipate having to submit an assignment late. I am happy to be flexible, with advance notice. We may be able to work out an extension based on extenuating circumstances. If you do not communicate with me before submitting an assignment late, the GCU late policy will be in effect. I do not accept assignments that are two or more weeks late unless we have worked out an extension. As per policy, no assignments are accepted after the last day of class. Any assignment submitted after midnight on the last day of class will not be accepted for grading. Communication Communication is so very important. There are multiple ways to communicate with me: Questions to Instructor Forum: This is a great place to ask course content or assignment questions. If you have a question, there is a good chance one of your peers does as well. This is a public forum for the class. Individual Forum: This is a private forum to ask me questions or send me messages. This will be checked at least once every 24 hours.
Turn the brief into deliverables
- 01Three neurologic disorders associated with altered motor function.
- 02The underlying pathophysiologic mechanism of each.
- 03The manifestations a patient with each disorder would present.
- 04Genetic factors contributing to one of the three, named specifically.
- 05An education plan for colleagues and for patients on one of the three.
Three mechanisms, one genetics section, one education plan
The levels at which motor function fails
A short framing that justifies the three disorders chosen.
Disorder one: mechanism and manifestations
A full mechanism-to-presentation account for the first disorder.
Disorder two: mechanism and manifestations
The same account for a disorder failing at a different level.
Disorder three: mechanism and manifestations
A third level of failure with its own characteristic presentation.
Genetic contributors to one disorder
Named genes, inheritance pattern and the proportion of cases they explain.
Education plan for colleagues and patients
The same evidence pitched twice, at different levels and for different purposes.
Mechanism-level sources, not symptom summaries
Recommended databases
- StatPearls via NCBI Bookshelf
- MedlinePlus Genetics
- PubMed
- National Institute of Neurological Disorders and Stroke
- Course pathophysiology text
Search sequence
- 1.List the anatomical levels of motor control and pick one disorder from three of them.
- 2.Read each disorder's mechanism before reading its clinical features.
- 3.For each manifestation, confirm which mechanistic step produces it.
- 4.Find named genetic variants for the disorder with the clearest heritable component.
- 5.Note which explanations need simplifying for a patient audience and which do not.
Reference shortlist
These are authoritative starting points, not a ready-made bibliography. A qualified reviewer must confirm that each source fits the assignment and supports the claim beside which it is cited.
Nothing here is cleared for citation until you have read it.
- 01
Parkinson Disease
StatPearls, NCBI Bookshelf · 2024
Basal ganglia mechanism and the motor triad it produces, plus named genetic variants.
- 02
Multiple Sclerosis
StatPearls, NCBI Bookshelf · 2024
Demyelination as a distinct mechanism, and lesions disseminated in space and time as its signature.
- 03
Amyotrophic Lateral Sclerosis
StatPearls, NCBI Bookshelf · 2024
Combined upper and lower motor neuron loss, and the C9orf72 and SOD1 genetics for the genetics section.
- 04
Neurodegenerative Diseases | MedlinePlus
MedlinePlus, National Library of Medicine · 2024
Plain-language material to model the patient half of the education plan on.
Review before submission
Common mistakes
- Choosing three disorders that fail at the same anatomical level, so one explanation covers all three.
- Listing manifestations beside a mechanism without connecting them.
- Saying genetics contribute without naming a gene or inheritance pattern.
- Writing one education plan and assuming it serves colleagues and patients equally.
- Describing treatment at length when the question asks for mechanism and manifestation.
- Supporting the post with patient-information pages rather than clinical literature.
Submission checklist
- Three disorders are named and their mechanisms differ from one another.
- Each mechanism is explained before its manifestations are given.
- Manifestations are explicitly traced to the mechanism.
- Specific genes or inheritance patterns are named for one disorder.
- The education plan distinguishes the colleague audience from the patient audience.
- Current research and guidelines are cited in APA format.
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Written by
Aaron Bishop
MA, Education
assignment interpretation and research-methods coaching across disciplines
Aaron leads the EssayCrackers editorial desk. He works on how assignment briefs are read — what a rubric is actually asking for, and where students most often answer a different question than the one set.
Reviewed by
Dr. Nathan Cole
PhD, Rhetoric & Composition
Argumentation and thesis development
Nathan teaches first-year composition and directs a university writing center. He reviews EssayCrackers guides for argumentative soundness and citation accuracy.