Collection of theses and reprints on nerves of vertebrates v. 1, 1890-99, Band 11899 |
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Seite 197 - Illustrated Encyclopaedic Medical Dictionary : Being a Dictionary of the Technical Terms used by Writers on Medicine and the Collateral Sciences in the Latin, English, French, and German Languages.
Seite 94 - BY WILLIAM A. HAMMOND, MD, Professor of Diseases of the Mind and Nervous System In the...
Seite 93 - ... or others will doubtless see reasons for changing — to improve as far as possible, fill up blanks, perhaps get up a small Manual in which the new terms shall be practically applied, and have faith that sooner or later the best part of your innovations will find their way into scientific use. * * * The plan is an excellent one — it is a new garment which will / fit Science well, if that capricious and fantastic and old-fashioned-dressing lady can only be induced to try it on.
Seite 80 - Magnilogy. — The employment of lengthy or ponderous terms when briefer would suffice. This is simply one form of what may be called anatomic esotery. Now that the choice is offered, the anatomist who deliberately says aponeurosis for fascia, anfractuosity for fissure, and convolution for gyre, thereby arrays himself with the village orator in whose turgid discourse a fire is always a conflagration.
Seite 94 - DORSAL and VENTRAL be employed in place of posterior and anterior as commonly used in human anatomy, and in place of upper and lower as sometimes used in comparative anatomy. (2) That the cornua of the spinal cord and the spinal nerveroots be designated as DORSAL and VENTRAL rather than as posterior and anterior. (3) That the costiferous vertebrae be called THORACIC rather than dorsal.
Seite 77 - Even this, however, is less than the excess here found for the Vth and Vlth nerves of the American frog (R. virescens). To explain the excess of fibers on the distal side of the spinal ganglion, Gaule ('96) suggested the only two possibilities: (i) Fibers coming from the periphery may end in the ganglion and thus not pass over into the dorsal root ; or, (2) fibers may arise in the ganglion and pass toward the periphery without there being a corresponding central process. Since the excess can be looked...
Seite 77 - III, exhibiting the excess in the larger root of the several spinal nerves. The records show the percentage value of the excess of the larger root. The records for the dorsal root appear above the base line and those for the ventral root, below it. 3. In regard to the relations existing between the two roots, it can also be shown that during growth the dorsal root fibers increase in number more rapidly than do those of the ventral root [Birge ('82) ]. This is seen to be true even for slight differences...
Seite 71 - ... on another long excursion, making haste with all my heart to store my mind with the Lord's beauty and thus be ready for any fate, light or dark. And it was from this time that my long continuous wanderings may be said to have fairly commenced.
Seite 65 - IIIrd nerve the branches are less than for the three nerves caudad to it, and the larger branches of it usually arise out of the ganglion and at right angles to the long axis of the nerve trunk. The IInd gives off many very small branches but in a very irregular manner, while the lst returns to the general type of those most caudad. 2. The dorsal and ventral roots vary both in length for the different nerves and in relative size for the same nerve. As a result of the difference between the rate of...
Seite 64 - ... employed. II. INTRODUCTION. The number, size and arrangement of the medullated nerve fibers constituting the peripheral nervous system in vertebrates presents many problems worthy of investigation. The problem which forms the basis of this paper is a determination of the length of some of the nerve fibers arising from the cells of origin situated in the ventral horns of the spinal cord and in the spinal ganglia. The region chosen for the study of this extension of the nerve fibers is, on the...