Paper, 'Note on the motor roots of the brachial plexus, and on the dilator nerve of the iris' by David Ferrier

Description

Ferrier writes: 'In a communication to the Royal Society (published in the “Proc. Roy. Soc.,” vol. 32, 1881) on the "Functional Relations of the Motor Roots of the Brachial and Lumbo-Sacral Plexuses,” my colleague, Professor Gerald Yeo, and myself gave an account of the results of electrical stimulation of the several motor roots of the brachial and crural plexuses in the monkey. We there described the muscular actions of the upper extremity as resulting from stimulation of the first dorsal up to the fourth cervical nerve. The careful dissections made at our request by Mr W Tyrell Brooks, Demonstrator in the Physiological Laboratory, King’s College, and a repetition of the stimulation experiments which I have mad have revealed an error in the enumeration of the roots of the braclii; plexus, which, in common with Professor Yeo, I wish to correct. Wha we took for the first dorsal nerve has proved in reality to he t! second dorsal. Hence the results of the experiments must be read applying to the spinal nerves from the second dorsal to the fift cervical respectively, instead of from the first dorsal to the fourth cervical, as stated in our paper.'

Annotations in pencil and ink.

Subject: Physiology / Neuroscience

Received 24 April 1883. Read 10 May 1883.

A version of this paper was published in volume 35 of the Proceedings of the Royal Society as 'Note on the motor roots of the brachial plexus, and on the dilator nerve of the iris'.

Reference number

PP/3/21

Earliest possible date

1883

Physical description

Ink and graphite pencil on paper

Page extent

10 pages

Format

Manuscript