YMCA L3 Anatomy - Nervous System

35 Questions | Total Attempts: 114

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YMCA L3 Anatomy - Nervous System - Quiz

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Questions and Answers
  • 1. 
    What is the function of the muscle spindle cells?
    • A. 

      Respond to excessive lengthening of muscles

    • B. 

      Detect excessive muscle tension

    • C. 

      Detect changes in levels of chemicals

    • D. 

      Respond to tightness in ligaments

  • 2. 
    What term means: ‘maintaining balance or returning a system to functioning within its normal range’?
    • A. 

      Homeostasis

    • B. 

      Osteoporosis

    • C. 

      Proprioception

    • D. 

      Hormones

  • 3. 
    Complete the sentence: _________ link to form a motor unit
    • A. 

      Motor neuron and muscle fibre cell

    • B. 

      Axon and dendrite

    • C. 

      Muscle fibre and golgi tendon organ

    • D. 

      Motor neuron and sensroy neuron

  • 4. 
    Speeding up the frequency of nerve impulses to motor units is a neuromuscular adaptation which leads to:      
    • A. 

      Stronger muscular contractions

    • B. 

      Improved efficiency of proprioceptors

    • C. 

      Improved neural connections

    • D. 

      Development of new connections

  • 5. 
    What is a synapse?
    • A. 

      A junction between nerve cells

    • B. 

      A link between motor neuron and muscle fibres

    • C. 

      A fatty sheath that covers the axon

    • D. 

      A tree like extension that receives information

  • 6. 
    What is the function of the Golgi tendon organ?
    • A. 

      Detect excessive muscle tension or contraction

    • B. 

      Initiating the stretch reflex

    • C. 

      Sends messages to the spinal cord

    • D. 

      Monitor the degree of tension in a muscle

  • 7. 
    What structures transmit information from receptors to the central nervous system?
    • A. 

      Afferent nerves

    • B. 

      Efferent nerves

    • C. 

      Sympathetic nerves

    • D. 

      Parasympathetic nerves

  • 8. 
    As the agonist contracts, the antagonist muscle relaxes to allow movement. What is this occurrence known as?
    • A. 

      Reciprocal inhibition

    • B. 

      Stretch reflex

    • C. 

      Autogenic inhibition

    • D. 

      Homestasis

  • 9. 
    Improved neuromuscular efficiency can lead to what benefits?
    • A. 

      Strengthening of existing connections

    • B. 

      Decreased agility

    • C. 

      Fewer nervous impulses

    • D. 

      Proprioceptors remain the same

  • 10. 
    What is the role of a motor unit?
    • A. 

      To contract a group of muscle fibres in response to a nerve impulse

    • B. 

      To sense changes in the external environment

    • C. 

      To detect temperature changes

    • D. 

      Control cardiac and smooth muscles

  • 11. 
    What structure forms the junction between a neuron and a target cell?
    • A. 

      Synapse

    • B. 

      Proprioceptor

    • C. 

      Axon

    • D. 

      Dendrite

  • 12. 
    Describe the process of motor unit recruitment?
    • A. 

      An efferent nerve impulse triggers all of the fibres in the motor unit to contract

    • B. 

      An afferent nerve impulse triggers all of the fibres in the motor unit to contract

    • C. 

      An efferent nerve impulse triggers one muscle fibre in the motor unit to contract

    • D. 

      An afferent nerve impulse triggers one muscle fibre in the motor unit to contract

  • 13. 
    What is a neuromuscular adaptation associated with training?
    • A. 

      Better inter-muscular coordination during movement

    • B. 

      Decreased motor recruitment patterns

    • C. 

      Lower frequency of neural connections

    • D. 

      Common movement patterns become harder

  • 14. 
    By what transmission method does a nerve impulse cross a synapse?
    • A. 

      Action potential

    • B. 

      Proprioception

    • C. 

      Stretch reflex

    • D. 

      Motor signals

  • 15. 
    During contraction of the biceps, reciprocal inhibition causes what?
    • A. 

      Flexion

    • B. 

      Extension

    • C. 

      Abduction

    • D. 

      Adduction

  • 16. 
    Motor units that contain a small number of muscle fibres have what characteristics?
    • A. 

      Enable very fine movements

    • B. 

      Require larger force development

    • C. 

      Produce more forceful contractions

    • D. 

      Greater stimulus to be recruited

  • 17. 
    What structure insulates a neuron?
    • A. 

      Myelin sheath

    • B. 

      Axon terminal

    • C. 

      Cell body

    • D. 

      Dendrites

  • 18. 
    When a motor neuron reaches its firing threshold, every muscle cell in the motor unit it supplies will contract maximally. This is known as
    • A. 

      'All or none' law

    • B. 

      Action potential

    • C. 

      Neurotransmission

    • D. 

      Reciprocal inhibition

  • 19. 
    What is controlled by the somatic nervous system?
    • A. 

      Skeletal muscles

    • B. 

      Endocrine glands

    • C. 

      Digestive system

    • D. 

      The heart

  • 20. 
    What receptors are activated during a developmental stretch?
    • A. 

      Muscle spindles

    • B. 

      Golgi tendon organs

    • C. 

      Barorecptors

    • D. 

      Somatic spindles

  • 21. 
    What sensory organs register the position of the body?              
    • A. 

      Proprioceptors

    • B. 

      Thermoreceptors

    • C. 

      Chemoreceptors

    • D. 

      Baroreceptors

  • 22. 
    What is the central nervous system made up of?
    • A. 

      Brain and spinal cord

    • B. 

      Sensory neurons

    • C. 

      Motor neurons

    • D. 

      Body organs

  • 23. 
    Interpreting and collating information and deciding on a response is the role of which nervous system?
    • A. 

      Central

    • B. 

      Peripheral

    • C. 

      Automatic

    • D. 

      Somatic

  • 24. 
    What is the peripheral nervous system made up of?
    • A. 

      Nerves

    • B. 

      Brain and spinal cord

    • C. 

      Organs

    • D. 

      Body systems

  • 25. 
    Which set of nerves carry information from the CNS to the body?
    • A. 

      Efferent

    • B. 

      Afferent

    • C. 

      Parasympathetic

    • D. 

      Automatic