Proprioception

• What is the role of the upper motor neuron in a forward bend position during yoga?

  It sends signals to the anterior horn
• What do proprioceptors detect during stretching?

  Movement and position of muscles
• Where are proprioceptors located?

  Throughout the skeletal muscle
• What are extrafusal muscle fibers responsible for?

  Most of the force during muscle contraction
• What innervates extrafusal muscle fibers?

  Lower motor neurons (alpha motor neurons)
• What do golgi tendon organs do?

  Detect tension at the ends of extrafusal fibers
• What are muscle spindles?

  Proprioceptors within muscle fibers
• What is the function of intrafusal muscle fibers?

  Detect changes in muscle length
• How do nuclear bag fibers differ from nuclear chain fibers?

  Nuclear bag fibers have concentrated nuclei
• What do Type 1a neuron fibers relay?

  How far and how fast the muscle is stretched
• What is the role of gamma motor neurons?

  Innervate ends of intrafusal muscle fibers
• What does the stretch reflex prevent?

  Overstretching of the muscles
• What happens when the patella is tapped?

  It stretches the muscle tendon
• What is the function of type 2 neuron fibers?

  Relay information about muscle stretch
• What occurs during the knee jerk reflex?

  Inhibitory interneurons relax flexor muscles
• What happens to muscle spindles when muscles contract?

  They become shortened
• What is the golgi tendon reflex?

  Prevents over contraction of muscles
• Where are golgi tendon organs located?

  At the junction of muscle and tendon
• What do pacinian corpuscles sense?

  Pressure and vibration in joints
• How do proprioceptors contribute to movement?

  Make movement smoother and automatic
• What activities improve proprioception?

  Yoga, hiking, and ice skating
• How does aging affect proprioceptors?

  They decrease, increasing injury risk
• What is somatic experiencing?

  Focuses on body awareness for emotions
• Why is variety important in proprioception training?

  To improve body awareness in space
• How does strength training benefit proprioception?

  Strong muscles provide strong signals