Diseases of the nervous system : a text-book of neurology and psychiatry . which uniteDeiters nucleus (ND) to the nuclei of the III and VI causes this. By reason of the over-action of the antagonists the patient looks to the right. (After Dejerine.) For abbre-viations of the anatomical sketch see section on Midbrain. 200 SENSORI-MOTOR NEUROLOGY—CRANIAL NERVES Transitory third nerve palsies occur in the chsorder known as ophthal-moplegic migraine (q. v.). Syndromes.—The compound character of the nuclei and the looselyarranged bundles making up the nerve explain the great range insymptomatology.
Diseases of the nervous system : a text-book of neurology and psychiatry . which uniteDeiters nucleus (ND) to the nuclei of the III and VI causes this. By reason of the over-action of the antagonists the patient looks to the right. (After Dejerine.) For abbre-viations of the anatomical sketch see section on Midbrain. 200 SENSORI-MOTOR NEUROLOGY—CRANIAL NERVES Transitory third nerve palsies occur in the chsorder known as ophthal-moplegic migraine (q. v.). Syndromes.—The compound character of the nuclei and the looselyarranged bundles making up the nerve explain the great range insymptomatology. Obersteiner (5th edition, 1912) follows Bernheimerchiefly in his teaching regarding the complicated question of the locali-zation of the brain stem nuclei.^ Thus it will be seen that from beforebackwards the nuclei are arranged as follows: Levator palpebrse, rectussuperior, rectus inferior, obliquus inferior, rectus inferior, trochlearis. A complete unilateral palsy, probably nuclear (ophthalmoplegiacompleta), would then cause ptosis, wrinkling of forehead on same. I u I Fig. 90.—Scheme of oculomotor nuclei modified fromi Bernheimer. Basal projec-tion, ikf, median nucleus; , Edinger Westphal sympathetic nucleus. (Obersteiner.) side, wide pupil, irresponsive to light and accommodation, eye turnedoutward and slightly downward. Double vision is present and somedizziness in the early stages. A variety of individual rhuscle palsiesmay also result from either nuclear or peripheral involvement asindicated—ophthalmoplegia externa, when the pupil is not involved;ophthalmoplegia interna when only the internal muscles are involved—a rare condition. The distinction of nuclear from peripheral palsies is usually madeon the basis of accompanying symptoms—sensory or motor, dueto implication of the red nucleus, or of the cerebral peduncles. In See Kidd, Rev. Ntu. and Psych., xi, 507. DISEASES OF THE OCULOMOTOR NERVES 201 the absence of these accessory symptoms (Weber-Giibler,
Size: 1533px × 1629px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectmentaldisorders
