Upper and Lower Motor Neurons Pathway Quiz
13 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which condition is characterized by a decrease in muscle size due to Motor Neuron lesions?

  • Spinal muscular atrophy
  • Amyotrophic lateral sclerosis (correct)
  • West Nile virus
  • Multiple sclerosis
  • What specific type of upper motor lesion is produced by damage to the corticobulbar pathway?

  • Diabetic neuropathy
  • Guillain-Barre syndrome
  • Cauda equina syndrome
  • Pseudobulbar palsy (correct)
  • What is the most common cause of acute flaccid neuromuscular paralysis?

  • B12 deficiency
  • Botulinum toxin (Botulism) (correct)
  • Fredericks ataxia
  • Polio myelitis
  • What is the function of upper motor neurons?

    <p>Transmit information from the brain to the skeletal muscles</p> Signup and view all the answers

    Where do the majority of upper motor neurons reside?

    <p>Cerebrum</p> Signup and view all the answers

    What is the role of lower motor neurons?

    <p>Transmit information from the brain to the skeletal muscles</p> Signup and view all the answers

    Where do some of the motor neurons that project to proximal muscles travel through before crossing over in the spinal cord?

    <p>Red nucleus of midbrain</p> Signup and view all the answers

    Which type of motor neurons are subdivided into alpha, beta, and gamma motor neurons?

    <p>Somatic motor neurons</p> Signup and view all the answers

    A lesion of the corticobulbar tract can result in what condition?

    <p>Pseudobulbar palsy</p> Signup and view all the answers

    Which system is responsible for voluntary movement?

    <p>Pyramidal system</p> Signup and view all the answers

    In the pyramidal system, what are the important tracts for voluntary movement?

    <p>Lateral corticospinal tract</p> Signup and view all the answers

    Which cranial nerve nuclei connect to the Nucleus Ambiguus?

    <p>Cranial nerve IX (glossopharyngeal nerve)</p> Signup and view all the answers

    Where do upper motor neurons from the right primary motor cortex pass through on their way to target organs?

    <p>Internal capsule</p> Signup and view all the answers

    More Like This

    Lower Motor Neuron Lesion Overview
    22 questions
    Upper and Lower Motor Neurons
    100 questions

    Upper and Lower Motor Neurons

    SatisfiedDivisionism avatar
    SatisfiedDivisionism
    Physiology Lecture 4: Motor Neurons
    23 questions

    Physiology Lecture 4: Motor Neurons

    BrainiestConsciousness3696 avatar
    BrainiestConsciousness3696
    Use Quizgecko on...
    Browser
    Browser