The Journal of Comparative Neurology and Psychology, Volume 15Editorial Office, Denison University, 1905 |
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Page 18
... side of six frogs varying in weight from 1.5 to 111 grams and , assuming the fibers of the two sides approximately equal in number , his figures show an average total gain of 51 ventral root fibers for each gram gained in body weight ...
... side of six frogs varying in weight from 1.5 to 111 grams and , assuming the fibers of the two sides approximately equal in number , his figures show an average total gain of 51 ventral root fibers for each gram gained in body weight ...
Page 21
... side . After be- ing subjected to the action of the fixing agent for 15 or 20 minutes , the parts become stiffened sufficiently to maintain their arranged rela- tions and may be gently lifted from the card - board that the fluid may ...
... side . After be- ing subjected to the action of the fixing agent for 15 or 20 minutes , the parts become stiffened sufficiently to maintain their arranged rela- tions and may be gently lifted from the card - board that the fluid may ...
Page 24
... side of the spinal ganglion proper in search of out - lying ganglion cells . In one case these comprised the appreciable total of 31 cells . In most cases the number was very small . In some cases they were more abundant in the ...
... side of the spinal ganglion proper in search of out - lying ganglion cells . In one case these comprised the appreciable total of 31 cells . In most cases the number was very small . In some cases they were more abundant in the ...
Page 28
... side of an adult man and it is interesting to note that the ratio found by him is con- siderably higher than that found in either the frog or the rat . He finds in the sums of all the roots of one side that the ventral root fibers are ...
... side of an adult man and it is interesting to note that the ratio found by him is con- siderably higher than that found in either the frog or the rat . He finds in the sums of all the roots of one side that the ventral root fibers are ...
Page 31
... side of the gang- lion ( col . G ) , it is seen that there is still an average of more than twice as many cells as there are fibers which can possibly be considered as arising in the spinal ganglia . These ratios ( col . D ) vary quite ...
... side of the gang- lion ( col . G ) , it is seen that there is still an average of more than twice as many cells as there are fibers which can possibly be considered as arising in the spinal ganglia . These ratios ( col . D ) vary quite ...
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Common terms and phrases
Anat animal arch auditory average body weight brain brain-weight branchial buds caudal centers cerebellum commissure 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 layer 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 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 trunk and dorsal University vagal lobe vagus ventral root vertebrates vesicle visceral
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