The special communications of the motive segments of the crus of the brain with the intellect : also, the separate parts of the brain producing the three voluntary powers of the muscles / by Joseph Swan.

  • Swan, Joseph, 1791-1874.
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: The special communications of the motive segments of the crus of the brain with the intellect : also, the separate parts of the brain producing the three voluntary powers of the muscles / by Joseph Swan. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    How an affection of the sections belonging to the resti- form body may be connected with impeded or irritating respiratory functions, and be the precursor of, or the attendant on paralysis. It may be seen how an extrava- sation of blood may break up and otherwise injure all the layers of one hemisphere and produce a more or less complete hemiplegia, the symptoms varying according to the implication of the particular sections; also how an affection of the corresponding layers of the two sides may produce paraplegia, injury being done to one or more of the flexor sections alone, or of the extensor, or to both at the same time. When the flexor sections are most disordered, this motion of the trunk of the body and the extremities may be lost, whilst the power of the extensor sections remain; so that the body may be kept upright with a slight support, and all the other func- tions except those of flexion be well performed. Or the extensor sections may be the most disordered, and then the power of flexion remains the strongest, so that in walking it is necessary to use deliberation for keeping the body in the perpendicular by placing the foot at the precise distance, as the extensor sections cannot otherwise lend sufficient assistance for preventing an overthrow. It may be seen why at the commencement of tetanus the jaws seem first to suffer, as there is very little opposing power in the muscles for relieving the morbid