The diagnosis of nervous diseases.

  • Purves Stewart, James, Sir.
Date:
1911
Catalogue details

Licence: In copyright

Credit: The diagnosis of nervous diseases. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    at the same time hemiplegia and hemianopia without also pro- ducing hemiansesthesia. A lesion of the cms cerebri will tend to implicate the third cranial nerve on the side of the lesion, producing at the same time a hemi- plegia of face, arm, and leg on the opposite side. This so-called Weber's syndrome is one variety of crossed paralysis. Fig. 8.—Diagram of Tracts in tlie Spinal Cord. 1. Crossed pyramidal tract (descendiiift). !i. Direct nr dorsal (cerebellar tract. and Spiiio-tlialamic tract (ascending). (>. Ventral cereliellai' tract (Oowers). 2. Direct iiyraniidal tract. 7. Lissauer s marginal zone. 3. Postero-internal tract ((!oll). 8. Lateral Kronnd liuiidle. 4. Postero-e.\ternal tract (Burdach). 9. Anterior ground-lnindle. A unilateral lesion of the pons at the level of exit of the facial nerve will produce another crossed paralysis, viz. :—facial palsy on the side of the lesion with hemiplegia of the arm and leg of the opposite side. And if at the same time the nucleus of the sixth cranial nerve be implicated (which is not unusual, since the facial nerve hooks round the sixth nucleus within the pons), we have nuclear palsy of the sixth nerve, facial palsy on the same side.