Anatomy Final 2

  1. mantle layer
    gives rise to gray matter (cell bodies)
  2. marginal layer
    gives rise to white matter (axons from cells bodies in mantle later)
  3. roof plate and floor plate of mantle layer
    seperate right and left side
  4. sulcus limitans of mantle layer
    seperates dorsal and ventral sides
  5. alar plates of mantle layer
    gives rise to association neurons with a sensory function
  6. basal plates of mantle layer
    • gives rise to motor neurons
    • cell bodies and synapses in CNS
    • axons in PNS
  7. sensory neurons derived from..
    neuroglial cells- grow central process into dorsal side and synapse with assoc. neurons from alar plate
  8. choroid plexus
    produces cerebrospinal fluid, associated with hindbrain
  9. lateral ventricles
  10. third ventricle
  11. aqueduct of Silvius
  12. fourth ventricle
    meten and myelencephalon
  13. medulla oblongata SS
    • general sensations from head and face
    • 1st association center for hearing and balance
  14. medulla oblongata VS
    • recieve sensations from throat and mouth
    • 1st assoc. center for taste
  15. medulla oblongata VM
    innervate the branchial and smooth muscles and glands of gut
  16. medulla oblongata SM
    innervate tongue muscles
  17. pyramids of medulla
    • visceral control to reticular formation
    • myelen
  18. pons
    • relay station for motor info from cerebral cortex to cerebellum
    • meten
  19. cerebellum
    • motor coordination, balance, proprioreception
    • meten
  20. superior colliculi
    • assoc. neurons for visual reflexes (subconcious localizing visual stimuli)
    • mesen
  21. inferior colliculi
    • center for auditory reflexes (subconscious processing to localize sound)
    • relay station for info going to cerebral cortex
  22. thalamus
    • relay station for ALL sensory info intended for cerebral cortex EXCEPT smell
    • dien
  23. hypothalamus
    • directly regulates most viseral functions (autonomic nervous system)
    • control pituitary secretions
    • emotions
    • dien
  24. infundibulum
    • connects hypothalamus and pituitary gland
    • dien
  25. cerebrum
    • site of conscious thoughts, decisions, and movements
    • telen
  26. basal ganglia
    • initiate stereotypical movement patterns
    • telen
  27. white matter in divided into..
    columns which then divide into nerve tracts or fasiculi
  28. dorsal horns of gray matter
    contain sensory axons that synapse with internerons
  29. ventral horns of gray matter
    contain the neuron cell bodies of somatic motor neurons
  30. lateral horns of gray matter
    contain the neuron cell bodies of autonomic neurons
  31. reflex arc order
    • sensory receptor
    • sensory neuron
    • interneuron
    • motor neuron
    • effector organ
  32. endoneurium in PNS
    surrounds individual axons
  33. perineurium in PNS
    binds together fascicles (groups of axons)
  34. epineurium in PNS
    holds fasicles that form the nerve together
  35. cauda equina
    gathering of spinal nerves at end of spinal cord
  36. conus medullaris
    where spinal cord ends (L1)
  37. fasciculus proprius
    short tracts in white matter that form a ring around gray matter
  38. dorsal comlumn tract
    carries proprioreception, two point discrimination, pressure, and vibration info to the cerebral cortex
  39. spinothalamic tract
    carries pain, temp, light, touch, pressure, tickle, and itch info to cerebral cortex
  40. spinocerebellar tract
    carries proprioreceptive info to the cerebellum
  41. lateral corticospinal tract
    controls movements of the neck, trunk, upper and lower limbs, especially fingers
  42. anterior corticospinal tract
    controls movement of neck and trunk
  43. parietal lobe
    tactile info, taste
  44. temporal lobe
  45. occipital lobe
  46. frontal lobe
    generally responsible for higher function like logic and thought
  47. insula
  48. precentral gyrus
    voluntary motor output originates here in 5th layer of cells (pyramidal)
Card Set
Anatomy Final 2
ch 12-16