The document discusses the vestibular system and vestibulo-ocular reflex. It covers the anatomy of the vestibular system including the vestibular nuclei and cranial nerves involved. It discusses the two types of vestibulo-ocular reflexes and how they function to keep vision stable during head movement. It also mentions some abnormalities that can occur in the vestibular system and notes that the vestibulo-ocular reflex matures during early infancy and is fully developed by 9 months of age.

1. movement
By :- Hasanain Ghaleb Khudhair
2nd stage medical student
College of Medicine/karbala university-Iraq
10/3/2014

3. vistubule

4. Vestibular
G.
Vestibular
part of CN
VIII

5. EYE

6. (SO4LR6)3

8.  Not to internet
Ear with eye movement

11.  White M.
 In brain stem
 III, IV,VI,VIII

12.  Types
 Pathway
 Function
 Abnormalities

13. 1. Rotational vestibuloocular reflex
2. Translational = =

14.  Semicircular canal or utricle and saccule
 Vestibular N. and ganglia
 Vestibular nuclei
 Med. Longitudinal fascicules
 CN III, IV & VI
 Extra ocular mm.(contraction * relaxation)

15.  Focus on objects
 Other complicated function related to explain
vision

16.  Manifest in several different ways, depending
on the anatomical location of lwsin or lesions
 Location of acceptable sites of lesion (answer
it please)
 Other causes
1. Cerebellar deficits
2. Cerebellar atrophy
3. Parietal vestibular cortex and ocular gyrus
4. Migraines, depression, and anxiety disorder

17.  Gain
 Phase
 symmetry

18.  • In recent years, studying the natural
maturational and aging effects on the
vestibulocular reflex (VOR) have been of
particular interest
 3 months of age may show
 the age of 9 months, full mature
 the absence of VOR by the age of 10 months
may be an abnormal finding

19.  clinical neuroanatomy 7th
 Atlas_of_Anatomy_-
_Patrick_W._Tank,_Thomas_R._Gest_(Malestro
m)
 AtlasOfNeuroanatomyAndNeurophysiology-
FrankH.Netter
 Medscape wibsite