neuroanatomy

Card Set Information

Author:
Anonymous
ID:
140584
Filename:
neuroanatomy
Updated:
2012-03-08 18:55:17
Tags:
neuroanatomy
Folders:

Description:
neuroanatomy
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. filum terminale is made of
    pia matter
  2. cervical enlargement of the spinal cord is at:
    C5-T1
  3. lumbar enlargements of the spinal cord are at
    L1-S2
  4. the conus medullaris is at
    L1-L2
  5. the lumbasacral cistern ends at
    S2
  6. number of spinal nerves
    • 8 cervical
    • 12 thoracic
    • 5 lumbar
    • 5 sacral
    • 1 coccyx
  7. number of vertebraes
    • 7 cervical
    • 12 thoracic
    • 5 lumbar
    • 5 sacral
    • 4 coccyx
  8. length of cauda equina
    L2-Coccyx
  9. at what level is lateral horn found and what nuclei it has
    found at T1-L3 and has ANS system neurons (sympathetic)
  10. list major parts of spinal cord section (9 parts)
    • ventral horn
    • dorsal horn
    • lateral horn
    • ventral median fissure
    • dorsal median sulcus and septum
    • central canal
    • ventrolateral sulcus
    • dorsal intermediate sulcus and septum
    • ventral white commissure
  11. פגיעה בשורש הוונרטרלי או הדורסלי נקראת
    motor/sensor radiculopathy
  12. what does dorsal column medial lemniscus pathway responsible for?
    • tactile descrimination
    • vibration
    • form recognition
    • joint and muscle sensation
    • concious proprieception
    • joint receptors, muscle spindles
  13. list dorsal column - medial lemniscus pathway
    • 1) located at DRG
    • give rise to fasciculus gracilis or fasciculus cuneatus
    • axons which terminate at those nuclei
    • 2) located at gracile and cuneate nuclei of the caudal medulla
    • give rise to internal arcuate fibers that decussate and form the medial lemniscus.
    • terminates at contralateral VPL nucleus of thalamus
    • 3) located at VPL nucleus of the thalamus
    • project via the posterior limb of internal capsule to the postcentral gyrus.
  14. what does ventral spinothalamic tract responsible for?
    • comprises anterolateral system with lateral spinothalamic tract
    • concerned with light touch, stroking skin with cotton.
  15. list ventral spinothalamic tract pathway?
    • 1) DRG at all levels
    • project axons into medial root entry zone in the dorsal horn
    • 2) located in the dorsal horn
    • give rise to axons that decussate in the ventral white commisure and ascend in the contralateral ventral funiculus
    • terminate in the VPL nucleus of the thalamus
    • 3) are found in the VPL nucleus of the thalamus
    • project via the posterior limb of the internal capsule and corona radiata to the postcentral gyrus
  16. what does lateral spinothalamic tract responsible for ?
    mediates itch, paint, temperature
  17. list lateral spinothalamic tract pathway
    • 1) located at DRG at all levels
    • project axons via dorolateral tract of Lissauer to neurons in dorsal horn
    • 2) located at dorsal horn
    • give rse to axos that decussate in the ventral white commisure and ascend in the ventral half of the lateral funiculus
    • project collaterals to the reticular formation
    • terminate contralaterally in the VPL nucleus and bilaterally in the intralaminar nuclei of thalamus
    • 3) located at VPL nucleus and intralaminar nucleus of thalamus
    • a) VPL neurons project via the posterior limb of i.c. to the somatesthetic cortex
    • b)intralaminar neurons projecy to caudatoputamen and frontal and parietal cortex
  18. what does dorsal spinocerebellar tract responsible for?
    • fine coordination of posture and the movement of indivdual muscles.
    • unconscious proprioceptive information
    • uncrossed tract
  19. list dorsal spinocerebellar tract pathway
    • 1) located at DRG from C8 to S3
    • project to nueron at dorsal horn
    • 2) located at dorsal horn
    • give rise to axons that ascend in the lateral funiculus and reach the cerebellum via the inferior cerebellar peduncle
    • axons terminate ipsilaterally as mossy fibers in the cortex of the rstral and caudal cerebellar vermis
  20. what does ventral spinocerebellar tract responsible for?
    • fine coordination of posture and the movement of entire lower extremity
    • unconscious proprioceptive information
    • crossed tract
  21. list ventral spinocerebellar tract pathway
    • 1) located at DRG from L1 to S2
    • synapse on spinal border cells
    • 2) spinal border cell at ventral horns
    • give rise to axons that decussate in the ventral white commissure and ascend lateral to the lateral spinothalamic tract in the lateral funiculus
    • enter the cerebellum via superior cerebellar peduncle and terminate contralaterally as mossy fibers in the cortex of the rostral cerebellar vermis
  22. what does cuneocerebellar tract responsible for?
    upper extremity equivalent of dorsal spinocerebellar tract
  23. list cuneocerebellar tract pathway
    • 1) located at DRG from C2 to T7
    • project axons via fasciculus cuneatus to the caudal medulla
    • 2) located at acessory cuneate nucleus of the medulla
    • give rise to axons that project to cerebellum via inferior cerebellar peduncle
    • terminate ipsilateraly in the arm region of nterior lobe of cerebellum
  24. where from trigeminal nerve exits
    the pons
  25. איפה הגבול בין המדולה לבין הפונס?
    ponto-medullary sulcus
  26. מהו ה
    tectum ?
    • הגג של
    • midbrain
    • tectum = plata quadrigemina = superior & inferior colliculi
  27. how the superior colliculli is connected to LGB ?
    through superior brachium
  28. input / output of MGB
    • in: ear and cohlear
    • out: auditory cortex
  29. how the inferior colliculi is connected to MGB ?
    through inferior brachium
  30. auditory tract
    cohlear -> inferior colliculli -> MGB -> auditory cortex
  31. what posterior commisure's function
    • bilateral Pupillary light reflex
    • connects pretectal nucleus
  32. where from trochlear nerve exits from ?
    below inferior colliculli
  33. where's posterior perforated substance ?
    between the cros cerebri, below mammilary bodies
  34. what's facial collicullis
    The facial colliculus is an elevated area located on the dorsal pons in the floor of the 4th ventricle. It is formed by motor fibers of the facial nerve as they loop over the abducens nucleus. Thus a lesion to the facial colliculus would result in facial muscle paralysis.
  35. what's rhomboid fossa ?
    The anterior part of the fourth ventricle is named, from its shape, the rhomboid fossa, and its anterior wall, formed by the back of the pons and medulla oblongata, constitutes the floor of the fourth ventricle.It is covered by a thin layer of gray substance continuous with that of the medulla spinalis; superficial to this is a thin lamina of neuroglia which constitutes the ependyma of the ventricle and supports a layer of ciliated epithelium.
  36. what's and where nucleus/tubercle gracile ?
    בליטה אחורית מדיאלית במדולה. מביאה תחושה מהרגל
  37. what's and where nucleus/tubercle cuneate ?
    בליטה לטראלית אחורית במדולה והיא מביאה תחושה מהיד
  38. where's tectum and tegmentum of midbrain ?
    the tectum is dorsal to cerebral aqueduct and tegmentum is ventral cerebral aqueduct
  39. to what parts the pons is divided ?
    basilar part of pons and tegmentum of pons
  40. what are the three thalamus regions
    • 1) anterior - limbic and motor
    • 2) medial
    • 3) ventral
    • 3a) ventral anterior
    • 3b) ventral lateral
    • 3c) ventral posterior
    • 3ci) VPL - body sense information, afferent to post central gyrus
    • 3cii) VPM - head sense information, afferent to post central gyrus
    • LGB & MGB posterior to VP
    • pulvinar is the most posterior
  41. what is the cranial nerve I
    olfactory nerve
  42. what is the cranial nerve II
    optic nerve
  43. which part of retina the LGB receives
    temporal ipsilateral and nasal contralateral
  44. what's bitemporal hemianopsia ?
    • גידול של היפופיזה שלוחת על מרכז הכיאזמה האופטית.
    • אדם עם סימפטום זה לא רואה את הצדדים הטמפורלים של שדה הראייה בגלל לחץ על האקסונים שמגיעים מהצד הנזאלי של הרשתית.

What would you like to do?

Home > Flashcards > Print Preview