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  1. sensory or afferent nerves
    carry impulses from sense organs to brain or spinal cord
  2. motor or efferent nerve
    carry impulses from brain or spinal cord to muscles or glands
  3. crainial nerves
    • part of peripheral nervous system, 12 pairs.
    • Olfactory- smell
    • Optic- vision
    • Oculomotor, Trochlear,Abducens- eye muscle
    • Vagus- throat, heart, digestive system
  4. spinal nerves
    31 pairs, Cervical, Thoracic, Lumbar, Sacral
  5. plexus
    network of adjacent spinal nerves and veins
  6. sympathetic system
    • consists of two cords
    • fight or flight, releases hormones
  7. parasympathetic system
    • active nerves: pelvic and vagus
    • counteract effects of sympathetic
  8. reflex act
    unconscious and involuntary nervous response
  9. stimulus
    change in environment
  10. receptors
    special structures that pick up stimuli
  11. effectors
    responding organs
  12. neuritis
    • inflammation of a nerve or a nerve trunk
    • symptoms are severe pain hypersensitivity, loss of sensation, weakness, atrophy
  13. paresthesia
    • tingling, burning, and crawling of the skin
    • associated with alcoholism or lack of vitamin B
  14. Sciatica
    • form of neuritis that affects the sciatic nerve
    • pain in the buttock or behind the knee, difficulty walking
  15. Neuralgia
    sudden, severe, sharp pain on pathway of nerve.
  16. Trigeminal neuralgia
    • condition that involves the fifth cranial nerve (trigeminal)
    • brought on by change in temp, breeze
  17. Bell's Palsy
    • involves 7th cranial nerve (facial)
    • stroke like facial movements
  18. Shingles or herpes zoster
    acute viral nerve infection. unilateral inflammation of cutaneous nerve.
  19. Carpal Tunnel Syndrome
    affects median nerve and flexor tendons that attach to wrist (carpal)
  20. electromyograph
    used to determine electroactivity through muscle
  21. Cumulative Trauma Disorders
    typing everyday
Card Set:
2012-05-17 22:42:28

vocab for ch 9 5/17/12 test
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