Two series of experiments were conducted on 17 mongrel dogs to investigate the participation of the lymphatic system of the head neck in drainage of the cerebrospinal fluid (CSF): in increase of intracranial pressure (ICP) to 500 mm water column in the first series, and in ICP of 1,000 mm water column in the second series. 131I-labelled albumin was used as the indicator, which was added to the artificial CSF to increase the ICP. It was established that the lymphatic system of the head and neck takes part in CSF resorption which is most manifest in higher levels of intracranial hypertension.
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