Lower motor neuron lesion

Lower motor neuron in red
DiseasesDB | 22143

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

## Overview

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A lower motor neuron lesion is a lesion which affects nerve fibers traveling from the anterior horn of the spinal cord to the relevant muscle(s) -- the lower motor neuron.

## Signs and symptoms

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One major characteristic used to identify a lower motor neuron lesion is flaccid paralysis. This is in contrast to a upper motor neuron lesion, which often presents with spastic paralysis.

## External links

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* http://library.med.utah.edu/neurologicexam/html/motor_anatomy.html#06
* Template:Dorlands

* v
* t
* e

Symptoms and signs: circulatory (R00–R03, 785)

Cardiovascular|

Template:Navbox subgroup

Myeloid/blood|

Template:Navbox subgroup

* v
* t
* e

Symptoms and signs: respiratory system (R04–R07, 786)

Hemorrhage|

* Epistaxis
* Hemoptysis

Abnormalities
of breathing|

Respiratory sounds

Stridor
Wheeze
Crackles
Rhonchi
Hamman's sign

Apnea
Dyspnea
Hyperventilation/Hypoventilation
Hyperpnea/Tachypnea/Hypopnea/Bradypnea
Orthopnea/Platypnea
Trepopnea

Biot's respiration
Cheyne-Stokes respiration
Kussmaul breathing

Hiccup
Mouth breathing/Snoring
Breath-holding

Other|

* Asphyxia
* Cough
* Pleurisy
* Sputum

* Respiratory arrest
* Hypercapnia/Hypocapnia

* Pectoriloquy: Whispered pectoriloquy
* Egophony
* Bronchophony

* Pleural friction rub

* Fremitus

* Silhouette sign

Chest, general|

* Chest pain
* Precordial catch syndrome

* v
* t
* e

Symptoms and signs: digestive system and abdomen (R10–R19, 787,789)

GI tract|

Template:Navbox subgroup

Accessory|

Hepatosplenomegaly/Hepatomegaly
Jaundice

Abdominopelvic|

Ascites

Abdominal – general|

Abdominal pain (Acute abdomen, Colic, Baby colic)

Splenomegaly

Abdominal guarding * Abdominal mass * Rebound tenderness

Shifting dullness * Bulging flanks * Puddle sign * Fluid wave test

Template:Skin and subcutaneous tissue symptoms and signs Template:Nervous and musculoskeletal system symptoms and signs Template:Urinary system symptoms and signs Template:Cognition, perception, emotional state and behaviour symptoms and signs Template:Speech and voice symptoms and signs Template:General symptoms and signs

* v
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* e

Symptoms and signs: Symptoms concerning nutrition, metabolism and development (R62–R64, 783)

Ingestion/Weight|

decrease: Anorexia • Weight loss/Cachexia/Underweight

increase: Polyphagia • Polydipsia • Orexigenia • Weight gain

Growth|

Delayed milestone • Failure to thrive • Short stature (e.g., Idiopathic)

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