File:His1897 fig17.jpg

Fig. 17. Section through a portion of the wall of the brain tube at the level of the origin of the fifth cranial nerve

It has been found necessary to turn this figure round on its side so as to make it fit into the plate. (corrected in the online version)

w. Wall of the brain-tube.

G.G. Gasserian ganglion. x.r. Sensory root, formed of fibres growing out from the cells of the ganglion and entering the wall of the neural tube. a.T. The same fibres as represented by s.r. cut transversely owing to their having turned downwards to form the spinal root of the fifth nerve.

m.n. Neuroblasts of the motor nucleus of the fifth nerve giving origin to the motor fibres m.r . which are seen growing out from the neural wall. m.r. Fibres of the motor root of the fifth nerve.

Human embryo of four weeks.

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Reference

His W. Address upon the development of the brain. (1897) Trans. Royal Acad. Medicine Ireland.

Cite this page: Hill, M.A. (2024, April 18) Embryology His1897 fig17.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:His1897_fig17.jpg

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