Webinar - Lower Limb Reflexes and Upper Motor Neuron Lesion (Part 2) | drbeen

About This Video

Nervous system examination is crucial to identifying the type of lesion, its location, and its extent. Lower limb reflexes are an important part of this examination especially in a patient in coma. Dr. Mobeen discusses the foundations of lower limb examination in this webinar. Next part will present the clinical utility and lesion assessment based on the abnormal reflexes e.g. positive Babinski's sign (plantar reflex), or hyperreflexia vs. hyporeflexia etc.

 

This second part of the webinar discusses the following topics:

  • Cause of hyperreflexia in a patient of upper motor neuron lesion.
  • Cause of hypertonia in a patient of upper motor neuron lesion.
  • Dysinhibition of the lower centers.
  • Clonus
  • When does atonia and flacidity occur?
  • When will we see fasciculation and twitching in the muscle?
  • When will we see muscle wasting?
  • Denervation degeneration.
  • Difference between the lower motor and upper motor neuron lesion.
  • What is plantar reflex or babinski's sign?
  • Role of the S1 spinal segment in plantar reflex.
  • What does involvement of the L4 and L5 spinal segments do to plantar reflex?
  • When is Babinski's sign is positive?
  • What is tripe reflex in the lower limb?
  • What does involvement of the L2 and L3 spinal segments do to the plantar reflex?

 

Following topics are discussed in the previous part:

  • Neurology examination. How to differentiate between upper and lower motor neuron lesions?
  • What is the difference between an upper motor neuron and a lower motor neuron?
  • Overview of the corticospinal tract or pyramidal tract.
  • What are spinal reflexes?
  • What is a reflex arc?
  • Components of a reflex arc.
  • What is the role of the upper motor neurons in the spinal reflexes?

 

 

 

Instructor

Dr. Mobeen Syed

Dr. Mobeen Syed

Mobeen Syed M.D, MS Graduated from King Edward Medical University. Entrepreneur, Medical Educator, CEO and founder of Drbeen corp.