The Journal of Comparative Neurology and Psychology, Volume 15Editorial Office, Denison University, 1905 |
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Page 19
... region of the ganglion . The investigation was begun some time ago when the au- thor was connected with the neurological laboratory of the Uni- versity of Chicago . It has been allowed to rest on account of the difficulty in obtaining ...
... region of the ganglion . The investigation was begun some time ago when the au- thor was connected with the neurological laboratory of the Uni- versity of Chicago . It has been allowed to rest on account of the difficulty in obtaining ...
Page 24
... region of outlying ganglion cells . The general results of these enumerations are given in the following tabu- lated form : TABLE I. Showing in their respective columns the number of fibers in the dorsal roots , the number of cells in ...
... region of outlying ganglion cells . The general results of these enumerations are given in the following tabu- lated form : TABLE I. Showing in their respective columns the number of fibers in the dorsal roots , the number of cells in ...
Page 28
... regions of the spinal cord , he further shows that the excess of dorsal root fibers runs appreciably higher in most of the cervical and lumbo- sacral nerves than in any of the thoracic region . HATAI's fig- ures indicate this to be true ...
... regions of the spinal cord , he further shows that the excess of dorsal root fibers runs appreciably higher in most of the cervical and lumbo- sacral nerves than in any of the thoracic region . HATAI's fig- ures indicate this to be true ...
Page 35
... region of the spinal ganglion . The observations as to the variations and causes of the distal excess made in these papers , one using the several nerves from one specimen and the other the one nerve from several specimens , should gain ...
... region of the spinal ganglion . The observations as to the variations and causes of the distal excess made in these papers , one using the several nerves from one specimen and the other the one nerve from several specimens , should gain ...
Page 60
... region . The spinal portion of the posterior longi- tudinal fasciculus is exclusively descending . Ascending fibers are found in this tract only within the bulb and mesencephalon . ascending and descending heterolateral fibers probably ...
... region . The spinal portion of the posterior longi- tudinal fasciculus is exclusively descending . Ascending fibers are found in this tract only within the bulb and mesencephalon . ascending and descending heterolateral fibers probably ...
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Common terms and phrases
Anat animal arch auditory average body weight brain brain-weight branchial buds caudal centers cerebellum commissure components connection cutaneous decussation direction distal excess dorsal branches dorsal root dorsal root fibers ectoderm facial lobe fact fishes frog function ganglia ganglion cells gill grams gustatory nucleus gustatory system head innervated insect Jour lateral light lobus medulla medullated ments mesoderm method motor movements muscles myotomes nerve fibers nerve roots nervous system neural neural plate Neurology neuromast neuromere neurones normal nucleus number of fibers oblongata observed olfactory optic optic vesicles peripheral Petromyzon phototaxis Physiol placodes portion position posterior Psychology rami ramus Ranatra rats reaction reflex region relations secondary gustatory tract segment selachians sense organs sensory sheath somatic somite specimens spinal cord spinal ganglion spinal nerves stimulus structure sympathetic tactual teleosts three nerves tion trial University vagal lobe vagus ventral root vertebrates vesicle visceral
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Page 100 - As the worm crawls it frequently moves the head from side to side as if feeling its own way along. If a strong light is held in front of the worm it at first responds by a vigorous contraction of the anterior part of the body; it then swings the head from side to side, or draws it back and forth several times, and extends again. If in so doing it encounters a strong stimulus from the light a second time it draws back and tries once more.