Exercise PHYSIO lecture 8/26

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  1. Motor Cortex
    consists of primary motor cortex and premotor cortex

    receives input from sensory and limbicĀ (motivational drives and needs)
  2. Primary Motor Cortex
    conscious, voluntary motor movements
  3. Premotor Cortex
    unconscious fine tuning of muscle activity required for highly-skilled movementsĀ (balance and stability)
  4. Sensory Cortex
    "receives and relays"

    relays information into the motor cortex for control of motor activities

    • hearing
    • touch
    • sight
    • smell
    • taste
    • kinesthetic awareness
  5. Basal Ganglia
    "smooth movement"

    functions in muscle tone, control of movement
  6. Thalamus
    • relay station for sensory input
    • interprets sensory info such as: pain, temp, crude pressure and touch

    connection for ascending and descending
  7. Hypothalamus
    control over visceral activities, water balance, body temp and sleep

    hypothalamic releasing and inhibiting hormones control release of hormones from pituitary
  8. Pyramidal Motor Tracts
    • 90% cross over
    • the other 10% do not (ipselateral)
  9. Cerebellum
    coordination of movement
  10. Medulla Oblongata
    controls heart rate, blood flow, equilibrium, swallowing, salivation and respiration
  11. Pons
    controls respiration and facial expression

    also, facial/neck sensations, eye movement, taste, salivation and equilibrium
  12. Midbrain
    conveys sensation of touch, proprioception and vibrations to thalamus

    regulation of eye movement, pupil size and lens shape
  13. Muscle Spindles
    role: sense length of muscle fiber, reflex contraction and co-activation (extra and intrafusal muscle cells)
  14. Golgi Tendon Organs
    reflex inhibtion
  15. Joint Receptors
    kinesthetic awareness (acceleration, deceleration, spacial awareness, joint angle, change in vibration, change in temp)
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Exercise PHYSIO lecture 8/26
2013-08-27 05:43:12
exercise physio lecture

notes from this lecture BITCH
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