Bauhaus-Universität Weimar

contraction of muscles of one side from, 669. 
Parotid gland, development of, 430. 
salivary canals in it, ib. 
Passions, influence of, on different viscera, 
615, 798. 
muscular movements excited by, 672, 798. 
modified by different states of the body, 792. j 
Pepsin, chemical properties of, 393. 
action of, 394. 
action of, on casein, 394. j 
does not dissolve all aliments, 395. 
Periodicity of vital actions, 60. 
Periosteum, its share in the formation of j 
callus, 125. j 
its share in the formation of the new bone, 
after necrosis, 137. j 
sympathies of, with bone, 579. \ 
Peristaltic movements of parts supplied by 
the sympathetic, 569. j 
Permeability of animal tissues, 249. 
Perspiration, whence secreted, 425, 456. 
Phantasms, j 
wherein they consist, 793. 
circumstances under which they occur, 794. j 
produced by certain diseases, 795. 
seen by Nicolai, 796. I 
observation of Goethe on, 18. 
Phosphate of lime, state of, in the bones, 13. 
Physiology, definition of, 93. 
Phosphorescence, j 
of infusoria, 93. 
ceases in death, 94. 
of animals with proper phosphorescent or- J 
gans, ib. J 
analogy of, with development of electricity, j 
ib. j 
of insects, 95. j 
imaginary, of eyes of the higher animals, 93. j 
of the sea, its three sources, 193. j 
Picromel of the bile, 371. 
Pigment cells, 421. J 
development of, 108. 1 
Pistil, female sexual organ of plants, 835. j 
Placenta, human, 846, 866*. 1 
fœtal and uterine, according to Weber, 846. 
fœtal and uterine, no direct vascular con- : 
nection between, 847. 
action of, equivalent to respiration, for the 1 
fœtus, 300, 848. ; 
their constituent elerqents, 13. 
cellular tissue of, 48. j 
nutriment of, 43. j 
nitrogen subservient to their nutrition, 49,50 j 
generate organic matter, 22, 26. 
circulation in, 48. 
ascent of sap in their vessels, 279. j 
respiration of, its product and uses, 49. 
and animals, their differences, 45. ! 
sleep and waking, 808. ! 
their sleep compared with that of animals, ib. 
nocturnal sleep of, analogous to hyberna- I 
tion, 80. j 
motions of, 45. i 
1 j 
motions of, not voluntary, ib. j 
motor organs of, 648. 
theory of the motion of the, 649. 
motions of the sensitive plant, ib. 
cause of motion in, ib. 
mode of propagation of, 48. 
their multiplication during growth, 815. 
their multiplication by the formation of 
buds, 818. 
sexual organs of, 835. 
spermatozoa in their male sexual organs, 827. 
act of impregnation in, 835. 
nature of the process of impregnation in, ib. 
development of their tissues from cells, 106, 
Plethora, effect of, on absorption, 257. 
Poisons, action of, 253. 
chemical action of, ib. 
Portio dura; see Facial nerve. 
Portal circulation, 181, 194. 
Posture, influence of, on the pulse, 184. 
Presbyopia and Myopia, 734. 
Primary cell, 106, 113. 
its formation, 15. 
its affinity to albumen, fibrin and casein, ib. 
compounds of, produced by vegetables, 97. 
furnishes the materials for the various tis¬ 
sues, 97. 
Puberty, period of, 827. 
Puerperal state, 851. 
Pulmonary circulation, 188. 
consequences of its obstruction, 190. 
various frequency of, according to age, &c., 
modified by elevation, sex, posture, &c. 184. 
inflammation and fever, ib. 
cause of, 187, 207, 209. 
not synchronous in different arteries, 208. 
Pulsus cordis, 187. 
Pulsus venosus, 188. 
secreted from inflamed surfaces, 133. 
physical and chemical characters of, ib. 
wherein differing from mucus, 134. 
its presence in the blood, ib. 
chemical characters of, 133. 
Races, different, 
how produced, 557. 
of the human species, 860. 
human, Blumenbach’s classification of the, 
human, languages spoken by, 863. 
definition of, 58. 
its uniformity in organised bodies, 59. 
is intermittent, 60. 
Rectum, muscular action of the, 360. 
Red particles, physical characteristics of, 145. 
effects of re-agents on, 148. 
chemical analysis of, 150. 
state in which iron exists in, 153. 
their central spot or nucleus, 145.


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