The nervous system of the human body : embracing a dissertation delivered to the medical profession of Philadelphia, and students of the two universities, on the subject of the nerves, brain, and organs of sense / by Ninian Pinkney.

  • Ninian Pinkney
Date:
1839
Catalogue details

Licence: Public Domain Mark

Credit: The nervous system of the human body : embracing a dissertation delivered to the medical profession of Philadelphia, and students of the two universities, on the subject of the nerves, brain, and organs of sense / by Ninian Pinkney. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

    25/36
    The same should be pursued with the spinal nerves. The mis- taken and absurd notion that regular nerves had two roots, and that irregular ones had but one root, arose from the fact of their tracing all the nerves from the brain and spinal marrow. If any one of you were to trace this nerve or a spinal nerve from the cerebrum and cerebellum, along the anterior and posterior co- lumns of the spinal cord, and finding two roots emerging from this cord, one having a ganglion and the other none, but joining its fellow and passing through the intervertebral foramina, are finally distributed to remote parts: I say, that the natural conclu- sion you would arrive at, would be, that this was double, and consequently possessed motion and sensation. Reverse things, and trace this same nerve from its peripheral extremity and when it has passed between the vertebrae, the two nerves separate; the motor courses along the anterior column, terminating in the cere- brum ; the other passes through a ganglion, and coursing along the posterior column terminates in the cerebellum. Ninth—Pathetic nerve. It arises from the superior part of the spinal marrow, and courses along through the sphenoidal fissure, to be distributed on the superior oblique muscle. This is a respi- ratory nerve. Tenth—Nervous motor oculi. This takes origin from the in- ternal face of the crus cerebri, and is a pure motor nerve. It passes through the same fissure as the last, and is distributed to three of the recti muscles and inferior oblique of the eye. Eleventh—Optic nerve. Twelfth—Olfactory nerve. These two last are also motor nerves. I make the following arrangement of the nerves of the brain, according to their pecu- liar functions. 1st Set. Motor nerves. They consist of the following: fNervus motor oculi, to four muscles of the eye. Their organ] Optic nerve, to the retina, cerebrum. ( Olfactory nerve, to the Schneiderian membrane. I Inferior maxilliary nerve. This is the motor nerve which passes through the foramen ovale of the sphenoid bone. I think it will yet be traced to the tongue, in connexion with the