INDEX OF SUBJECTS. 



1309 



Plexus, hypogast 



lumbo-sacral, 



mesenteric, 



ossophageal, 



pelvic, 636, 646, 647, 651 



post-fixed, 



pre- fixed, 



pulmonary, 



renal, .... 



solar, . . .331 



spermatic, 



tympanic, 



Plexuses of lirnbs, significance of, 

 Plume-organs, 

 Pneumatograph, . 

 Pneumograph, 

 Points, cardinal, of eye, 



,, corresponding, of retina, 



PAGE 



337, 338, 342, 344, 

 348, 349 

 . 633, 635 

 331, 336, 338, 642 

 . 320 

 , 668 

 795 



nodal, of eye, . 



principal, of eye, 



lille, law of, 



. 795 

 . 320 

 . 642 

 334, 342 

 . 338 

 1157, 1240 

 . 820 

 924, 1008 

 . 282 

 . 282 

 . 1209 

 757, 1124, 

 1127, 1138 

 . 1029 

 . 1029 



Poiseuille, law of, .... 64 



Polar excitation of sensory organs, 516, 517 

 Polarisation of electrical organ, . . 584 

 ,, muscle. See Muscle. 



,, nerve. See Nerve. 



,, nerve-cells, dynamical, . 798 



Polarising currents, heterodromous, . 585 

 ,, homodromous, . 585 



Polyneural cells, 593 



Pons, 891 



,, afferent root fibres of, . . . 891 

 ,, ,, to auditory organ, 



891 



,, ,, ,, ,, mucous mem- 



branes of head, 



891 

 ,, ,, ,, ,, muscle sense 



organs, . 891 

 ,, skin of head, 891 

 ,, ,, ,, ,, spatial sense 



organs, . 891 



,, centres in, ,, . . . 891, 893 

 ,, conduction paths in, ascending, 893 

 ,, , >j ,, from auditory 



end-nuclei, 893 

 ,, ,, ?> to corpus 



striatum, 893 



,, ,, , , ,, from dorsal 



column 

 nuclei, 893 

 ,, ><.'i spino-cerebel- 



lar, . 893 

 ,, ,, ,, spino-mesen- 



cephalic, 893 



,, ,, ,, descending, 893 



,, ,, s> from corpora 



quadrige- 

 mina, . 893 

 ,, ,, from fronto- 



pontine, 779, 

 893 



,. j 5 ?> i n posterior 



longitudinal 

 bundles, 893 



,, ,, ,, pyramidal, 777, 



778, 893 



nucleus, 893 



PAGE 



Pons, conduction paths in, descending, from 

 reticular 

 formation, 893 

 ,, ,, ., ,, temporo-pon- 



tine, . 893 

 ,, degeneration in, after ablation of 



cortex, ..... 705 

 ,, efferent root-fibres of, . . . 891 

 ,, , , ,, for eye move- 



ments, . 891 

 ,, ,, ,, ,, facial expres- 



sion, . 891 

 ,, ,, ., ,, movements 



of mouth, 891 

 ,, ,, ,, ,, muscles of 



mastication, 891 

 .. 891 

 891, 893, 907 

 . 891, 892 

 .. 893 

 .. 839 

 .. 45 

 140, 161, 643 



., functions of, . 



,, nuclei of, . . 



,, reflexes of, . . 



,, transection of, . 

 Porencephaly, .. 

 Portal vein, ligation of, 



vasomotors of, 



Position of body, .... 228 



erect . . 231, 260 

 normal, . 231, 258, 260 

 Post-cellular fibres, .... 623 

 ,, -fixed plexuses, .... 795 

 ,, -ganglionic fibres. See Sympathetic 

 nerve fibres. 



Posture, perception of, . . 1013, 1014 



,, reflexes, .... 827, 844 



Potassium salts, effect of, on muscle, 193, 225, 



226 



,, ,, nerve, 465, 489, 



490, 536 



Pre-cellular fibres, .... 623 

 Pre-commissural area, .... 764 

 Pre-dicrotic wave, . . . .111 

 Pre-fixed plexuses, .... 795 

 Pre-frontal region of cortex, 738, 770, 772,773, 



777, 779, 780 

 Pre-ganglionic fibres. See Sympathetic 



nerve fibres. 



Pregnancy, ..... 349, 350 

 Pressure, abdominal, influence of, on 



circulation, . 44, 52, 91, 92, 

 93, 127, 129, 141, 147 

 ,, arterial. See Arterial pres- 



sure. 



,, capillary. See Capillaries. 



,, of circulation, mean hydro- 



kinetic, 70, 71 

 ,, hydro- 



static, 70, 71 



,, intracardiac, . . 14, 40 



,, ,, auricular, 22, 51, 150 



,, ,, ,, curve of, 22 



,, ,, ,, influence 



of valves 

 on, . 9 



.. ,, ,, maximal, 24 



,, ,, ,, negative, 



23, 119 



diastolic, 41, 50, 51, 

 52, 72, 

 75, 77 

 ,, ,, influence of, on 



heart-beat, 56, 

 58, 170 



