Rehab- ch3.txt

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Rehab- ch3.txt
2014-01-27 21:17:38
Examination Sensory Function
Examination of Sensory Function
Examination of Sensory Function
Show Answers:

  1. What is sensory integration?
    the ability of the brain to organize, interpret, and use sensory information.
  2. Sensory integrity is based on what?
    • Senses: (sight, hearing, etc…)
    • Somatosensory:(input from skin & musculoskeletal system)
  3. What is the purpose for sensation?
    • guides motor responses for interaction with the environment
    • adapts movement and shapers motor programs through feedback for correct action
    • provides protection from injury
  4. What is feedback control?
    uses sensory information received during movement to monitor and adjust motor output
  5. what is feedforward control?
    proactive strategy  that uses sensory information from previous experiences and results in anticipatory adjustments in postural control or movement.
  6. Motor learning is dependent on what 3 things?
    • sensory intake
    • sensory integration
    • output
  7. What is somatosensory?
    sensation received from the skin and musculoskeletal systems.
  8. What are some age-related sensory changes?
    • decrease in myelin
    • neuron degeneration
    • decrease of dopamine and norepinepherine
    • reduction of normal ROM
    • pain
    • muscle weakness
    • decline of visual and hearing
  9. What are some considerations during the sensory assessment?
    • Arousal
    • Attention
    • Orientation
    • Cognition
    • Calculation ability
    • Hearing
    • Visual Acuity
  10. What are the levels of Consciousness?
    • Alert
    • Lethargic
    • Obtunded
    • Stupor
    • Coma
  11. Define Arousal:
    readiness of human system for activity. LOC
  12. Define attention:
    selective awareness of the environment or response to a stimulus without being distracted by another stimulus
  13. Define Orientation:
    Person's awareness of time, person, place.
  14. Define Cognition:
    process of knowing and includes awareness and judgment
  15. Define Calculation ability:
    foundational math abilities
  16. Define Memory:
    both long term and short term retention of info
  17. Superficial Sensation receives information from where and in turn detects what?
    • exteroceptors receive stimulus from environment via skin 
    • pain
    • temp 
    • light touch
    • pressure
  18. Deep sensation receives information from where and in turn detects what?
    • proprioceptors receive stimuli from muscles, tendons, ligaments, joints, fascia
    • position sense
    • awareness of joints at rest
    • kinesthesia awareness
    • vibration
  19. Combined Cortical Sensations receive information from where and in turn detects what?
    • from superficial and deep sensory mechanisms
    • stereognosis
    • 2-point discrimination
    • barognosis
    • graphesthesia
    • tactile localization
    • recognition of texture
  20. Describe the Anterolateral Spinothalamic Tract:
    • self-protective reactions such as pain, temp, crude localized touch, tickle, itch, sexual sensations
    • small, slow conducting afferent fibers
    • activated by: mechanoreceptors, thermoreceptors, and nociceptors
  21. Describe Dorsal Column-Medial Leminiscal System:
    • Large, myelinated, fast conducting fibers
    • responds to discriminative touch, pressure, vibration, movement, position sense, and awareness of joints at rest
  22. Types of sensory receptors:
    • mechanoreceptors
    • deep sensory receptors
    • thermoreceptors
    • nociceptors
    • electromagnetic receptors
    • chemoreceptors
  23. types of mechanoreceptors:
    • free nerve endings
    • hair follicle endings
    • merkel disks
    • ruffini endings
    • krause's end bulb
    • meissner's corpuscles
    • pacinian corpuscles
  24. Types of muscle receptors
    • Muscle spindles
    • golgi tendon organs
    • free nerve endings
    • pacinian corpuscles
  25. types of joint receptors:
    • golgi-type endings
    • free nerve endings
    • ruffini endings
    • paciniform endings
  26. Deep sensory receptors receive info pertaining to:
    • position sense
    • proprioception
    • muscle tone
    • speed and direction of movement
  27. Nociceptors receive info pertaining to:
  28. Chemoreceptors receive info pertaining to:
    • smell
    • taste
    • CO2
    • blood glucose
  29. What is the sensory homunculus?
    a somatotopic map identifying relative size or cortex devoted to specific body parts
  30. What are the 3 divisions of the cortex?
    • Primary(SI)
    • Secondary (SII)
    • Posterior Parietal cortex
  31. Where is the primary division of the cortex located?
    posterior of the central sulcus
  32. Brodmann's areas 3a, 3b, 1 and 2 identify what?
    • location of stimuli
    • size
    • shape
    • texture of objects
  33. Where the secondary division of the cortex located?
    superior of the lateral sulcus and DEEP
  34. The Secondary division of the cortex identifies what?
    tactile memory
  35. Brodmann's Area 5 receives stimuli concerning:
    tactile input from mechanoreceptors from skin and proprioception from muscles and joints
  36. What does Brodmann's area 7 do?
    integrates sterognosis and visual infromation
  37. What do Brodmann's area 5 and Brodmann's area 7 work together to contribute to motor performance?
    • determine initial position required before a movement occurs
    • error detection as a movement occurs
    • identification of movement outcomes to shape learning
  38. Considerations for Sensory examination:
    • superficial sensations are tested before deep
    • dermatomes are used as reference
    • testing from distal to proximal