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Nerve or Nerves (contd.)--
petrosal (contd.), superficial, external, 782

greater, 782

lesser, 759, 782, 786
pharyngeal, 778, 1150

of glossopharyngeal nerve, 786
of spheno-palatine ganglion, 778
of sympathetic, 756
of vagus, 788
phrenic, 699

branches of, 699
communications of, 699, 702
surgical anatomy of, 1393
of pinna, 830
to piriformis muscle, 729
plantar, lateral, 734

surgical anatomy of, 1465
medial, 734

surgical anatomy of, 1465
posterior descending supra-clavicular, 696

Nerve or Nerves (contd.)

scrotal (contd.) posterior, 739
segmental, of head, 796
to semicircular ducts, 785
sensory ganglion of, 510
to short head of biceps, 729
muscles of little finger, 709

of thumb, 706
to shoulder-joint, from axillary, 710

from supra-scapular, 703
of skin, 858
of small intestine, 1187
spermatic, external, 722
spheno-palatine, 775
to sphincter ani muscle, 738, 739

pupillæ muscle, 814

spinal, 685

morphology of, 700
to prevertebral muscles, 695
to psoas major muscle, 720
of pterygoid canal, 777
pterygoid, external, 779

internus, 778
pudendal, 738
pulmonary, 1096

from sympathetic, 761

from vagus, 789
to pyramidalis abdominis muscle, 717
to quadratus femoris muscle, 728

lumborum muscle, 720
radial, 710
collateral branches of, 711

cutaneus brachii posterior, 711
dorsal cutaneous nerve of forearm, 711

ulnar collateral nerve, 711
course of, 711
deep ramus of, 712
dorsal interosseous, 713
superficial rami of, 712
surgical anatomy of, 1454
topography of, at elbow, 1450

in arm, 710, 711
variations of, 752
to radio-carpal joint, 705
to radius, 705
ramus anastomoticus peronæus, 730
of rectum, 1233
recurrens (vagi), 788
recurrent tibial, 730
to rhomboids, 702
sacral, 691, 727, 735
anterior rami of, 727, 735

visceral branches of, 736
posterior rami of, 691
sacro-coccygeal, anterior, 738

posterior, 691
saphenous, 726
surgical anatomy of, in foot, 1465

in leg, 1463

in thigh, 1461
to scaleni muscles, 695, 697
to scalp muscles, 783
scapular, dorsal, 702
sciatic, 728

course of, 728
division of nerve to hamstrings, 728
nerve to short head of biceps, 728

surgical anatomy of, 1456
scrotal anterior, 721

anterior rami of, 685
classification of, 678
development of, 679
distribution of, general, 680, 687

to limb-muscles, 687

to skin of limbs, 687
formation of, 680
ganglia of, 685
gray rami of, 680, 681

of brachial plexus, 700
of cervical plexus, 694
of lumbo-sacral plexus, 719
of pudendal plexus, 719
of sacral plexus, 719

of thoracic nerves, 714, 716, 717
morphology of rami, 681, 691, 741
number of, 678
origin of, 522, 528
posterior rami, 687, 691
recurrent branches of, 686
relation of, to meninges, 686

to vertebræ, 1442, 1443
roots of, 519
anterior, 519

development of, 679
posterior, 519

development of, 679
segmental disposition of, 687
size of, 678
somatic portion of, 680
splanchnic portion of, 680
visceral branches of, 680
white rami of, 687

development of, 681
of lumbar and sacral nerves, 719
of pudendal plexus, 719
of sacral plexus, 719

of thoracic, 714, 716, 717
spinosus, 778
splanchnic, 761

greater, 761, 764
lesser, 761

lowest, 761, 764
stapedius, 782
to sterno-mastoid muscle, 696, 793

from accessory, 793
of stomach, 1177
to stylo-pharyngeus muscle, 786
to subclavius, 702
of sublingual gland, 1140
of submaxillary gland, 1138
suboccipital, 688

morphology of, 691
subscapular, 713

lower, 713

Nerve or Nerves (contd.)

subscapular (contd.), short, 713
supra-clavicular (descending cervical), 696

anterior, 696
middle, 696

posterior, 696
morphology of, 700
supra-orbital, 772

surgical anatomy of, 1358
supra-scapular, 703

variations of, 700, 752
supra-trochlear, 773

surgical anatomy of, 1358
sural, of common peroneal, 730
lateral, of posterior cutaneous nerve of

thigh, 737
medial, of tibial, 732
sympathetic, 753
of taste, 598
temporal, of auriculo-temporal, 780

deep, 779

of facial, 783
topography of, 1359
to tensor fasciæ latæ muscle, 729

tympani muscle, 835

veli palatini muscle, 786, 788
tentorii, 772
to teres minor muscle, 710
terminalis, 608
thoracic, 713
anterior rami of, 713

cutaneous branches of, 714

of first, 714
of second, 714

of twelfth, 717
communications of, 714, 716, 717, 719
muscular branches of, 703

of first, 714
of second, 714

of twelfth, 717
posterior rami of, 690

cutaneous branches of, 690
first, 713
lateral anterior, 703
long, 702
medial anterior, 703
second, 690

twelfth, 690
thoraco-dorsal, 713
to tibia, 732
tibial, 729, 732

surgical anatomy of, 1458
communicating, 732

recurrent, 730
to tibio-fibular joint, from common peroneal,

730

Nerve or Nerves (contd.)
trigeminal, mesencephalic root of (rond,',

in pons, 602
morphology of, 796
motor root of, 601

development of, 683

morphology of, 796
nuclei of, 600

development of, 683
of mesencephalic root of, 602

in pons, 602
semilunar ganglion of, 771
sensory root of, 600

development of, 683

morphology of, 796
spinal tract of, 601

development of, 602
superficial origin of, 600, 771
trochlear, 770

communications of, 771
course of, 770
deep origin of, 602
development of, 683
morphology of, 798
nucleus of, 602

superficial origin of, 602, 770
tympanic, 786, 836

morphology of, 796
to ulna, 705
ulnar, 708

course of, 708
surgical anatomy os, in arm, 1448

at elbow, 1451
collateral, 711
to utricle, 785
to uvular muscle, 786
vagus, 786

abdominal branches of, 789
afferent fibres of, 596

root of, 795
branches of, 789
cardio-inhibitory fibres of, 793
communications of, 788, 789
deep origin of, 596
development of, 795
efferent fibres of, 596

root of, 795
ganglion nodosum of, 788
in jugular foramen, 786
jugular ganglion of, 788
left, in thorax, 786
morphology of, 797
in neck, 788
nucleus of, 597

relation of, to fourth ventricle, 551
right, in thorax, 786
roots of, 596

development of, 795

morphology of, 796
superficial origin of, 786
surgical anatomy of, 1393
termination of, in coats of stomach, 1177
in thorax, 786

viscero-motor fibres of, 793
vesical, 766
vestibular, 853

connexion of, with cerebellum, 604
deep origin of, 604
descending root of, 605
nucleus of, 604, 605

from tibial, 732
of tongue, 1136
of tonsil, 1149
to transversus abdominis, 484

thoracis muscle, 470
to trapezius muscle, 366

from accessory, 793
trigeminal, 771

ascending root of, 601
deep origin of, 600
development of, 683
divisions of, 772

mandibular, 778
maxillary, 775

ophthalmic, 772
mesencephalic root of, 601

relation of, to fourth ventricle, 551
zygomatic, of facial, 773, 775

Nerve or Nerves (contd.)--

zygomatic (contd.), of maxillary, 776
zygomatico-facial, 776
zygomatico-temporal, 776
Nerve-cells, 506

axons of, 507
bipolar, 510
cellulipetal processes of, 511
of cerebellum, 579
of cerebral cortex, 645
dendrites of, 509
development of, 35, 498
ganglionic, 510
of Golgi, in cerebral cortex, 645
processes of, 528, 529, 530, 531
of Purkinje in cerebellum, 580, 581
radicular, 528
of spinal ganglia, 685

medulla, 529
of sympathetic ganglia, 753

unipolar, 510
Nerve-components, 505
Nerve-endings, 863

free, 863

special end organs, 863
Nerve-fibres, 508

afferent, 509
collateral, 512, 534, 535
efferent, 504, 509
medullated, 508
myelinisation of, 509

of lateral cerebro-spinal tract, 533
of medial longitudinal fasciculus, 589
order of occurrence of, in spinal medulla,

533
of sensory, 532
neurolemma of, 508
non-medullated, 508, 754
primitive sheath of, 508
somatic efferent, 505
splanchnic, afferent, 754, 760

in thoracic region, 759
efferent, 505, 754, 760

in thoracic region, 761
peripheral, 755
sympathetic, 754

cervical, 756
destinations of, 754
medullated, 754
non-medullated, 754

splanchnic, 754, 756
terminations of, 504, 509

Wallerian degeneration of, 532
Nerve-roots, 519

anterior, origin of fibres of, 528
cerebral, 592
spinal, 519

development of, 519
anterior, 519, 529

development of, 520
origin of, 529

relation of, to sympathetic, 754
posterior, 519, 533, 534, 536

development of, 520, 536
in posterior funiculus of spinal medulla,

533

relation of, to sympathetic, 754
Nervous system, 497

cerebro-spinal, 497
early stages of development, 30
elements of the, 497
of hydra, 497

Nervous system (contd.), scheme of the, 498
Nose (contd.), alar sulcus of, 799

sympathetic, 753
Nervus, see Nerve
Neural arteries, of gluteal, 938

of intercostals, 926
canal, 31
crest, 32, 500, 679
ectoderm, 499, 501
fold, 31
groove, 23
plate, 30
syncytium, 504
tube, 31, 33
alar lamina of, 36, 505, 682

in fore-brain, 608
in hind-brain, 552, 553, 554
in mid-brain, 592
relation of, to origin of nerves, 553,

554, 682
basal lamina of, 36, 505, 682

in fore-brain, 608
in hind-brain, 553
in mid-brain, 592
relation of, to origin of nerves, 553,

554, 682
central canal of, 564, 565
development of cerebral nerves from, 682

of spinal nerves from, 679
differentiation of, 33
ependymal layer of, 502
fate of spinal portion, 35
flexures of, 514
floor-plate of, 402, 520
germinal cells of, 35
histological differentiation of walls, 35
limiting membrane of, external, 35, 502

internal, 35, 502
mantle-layer of, 502
marginal layer of, 502
myelospongium of, 503
neuroblasts of, 503
perforations in wall of, 37
roof-plate of, 402, 520

sulcus limitans of, 36
Neurenteric canal, 23, 26
Neurobiotaxis, 554
Neuroblasts, 36, 503
Neuro-central synchondrosis, 104
Neuroglia of brain, 511

of spinal medulla, 527
Neurolemma, 508
Neurology, 3
Neuro-muscular spindles, 866
Neuron, 503
Neurone theory, 503

objections to, 504
Neuropore, 31

anterior, 31, 500
posterior, 31, 500
Neuro-tendinous spindles, 865
Nictitating membrane, 821
Nipple, 1337
Nodule of cerebellum, 571

development of, 571
Noduli aggregati of vermiform process, 1217
lymphatici aggregati, 1181

intestini recti, 1230
lienales, 1355

solitarii, 1181
valvularum semilunariun, 877
Nose, 799

ala of, 799

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arteries of, 805
bridge of, 799
cartilages of, 800
cavity of, 801
choanæ of, 175, 185, 196

surgical anatomy of, 1246
development of, 49
digital exploration of, 1378
external, 799
floor of, 804
hiatus semilunaris of, 803
infundibulum of, 803
lateral wall of, 802
limen of, 802
lymph vessels of, 1004
meatuses of, 803
mucous membrane of, 804
muscles of, 450

Nucleus, 8
Nucleus or Nuclei, of abducens nerve, 600

relation of, to medial longitudinal

bundle, 588, 600
accessory, 560, 595
of acoustic nerve, 604-606
ambiguus, 595, 596
amygdalæ, 641
anterior, of thalamus, 612
arcuate, 552, 563

development of, 552
of thalamus, 612
of Bechterew, 605
caudate, 635, 637
of cells, 8

during mitosis, 9, 13

segmentation, 10
central, of Luys, 612
cochlear, 554, 604

development of, 684
colliculi inferioris, 585
corporis geniculati lateralis, 613

medialis, 607
mamillaris, 615
of corpus trapezoideum, 606
cuneate, 533, 547, 560

development of, 552

relation of, to arcuate fibres, 560
of Deiters, 605

function of, 605
dentate, 576
dorsalis, 531
emboliformis, of cerebellum, 577
of facial, 599
fastigii, 577
fertilisation of, 20
first segmentation, 21
of funiculus solitarius, 598
globosus, 577
glossopharyngeal, 596-598

relation of, to fourth ventricle, 596
gracilis, 547
relation of, to arcuate fibres, 560

to lemniscus, 559
hypoglossal, 594

relation of, to fourth ventricle, 594
hypothalamicus, 614
intercalatus, 551
laryngeal, 598
of lateral lemniscus, 606
lentiform, 638
lentis, 520
of Luys, 614
medial, of thalamus, 611
of medulla oblongata, 551

development of, 551, 592
of mesencephalon, 584, 585, 586, 588
motor, 592
motorius nervi trigemini, 601
oculo-motor, 603
olivary, accessory, 556
inferior, 556

relation of, to cerebello-olivary fibres, 556

surface elevation of, 547
superior, 567, 606

pedicle of, 606
relation of, to corpus trapezoideum, 606

1

1

action of, 452

nerve-supply of, 452
nasal index of, 799
nerves of, 805
olfactory part of, 804
outer parts of, 799
piriform openings of, 163
recessus spheno-ethmoidalis of, 802
respiratory part of, 804
septum of, 802

surgical anatomy of, 1378
veins of, 806
vessels of, 805

vestibule of, 802
Nostril, 799
Notch, acetabular, of ischium, 232

variations in, 281
cardiac, of lung, 1095
of cerebellum, 574
ethmoidal, 116
greater sciatic, of ilium, 229
infra-sternal, 1397, 1407
intercondylic, of femur, 243
jugular, 107
mandibular, 156
nasal, 115
pterygoid, 137
pterygo-palatine, 151
radial, 211
of Rivinus, 834

to lateral lemniscus, 606

to nucleus of lateral lemniscus, 606
of optic nerve, 620
of origin, 592
of origin of cerebral nerves, 592

96
of sacrum,

scapular, 201, 203

great, 202
sciatic, 229, 232
semilunar, 211
of spleen, 1352
supraorbital, 116
suprasternal, 107
ulnar of radius, 215

umbilical, 1191
Notochord, 23, 24, 290

formation of, 24

remnants of, 25
Nuchal furrow, 1395
lines, 166, 171

of occipital bone, 121
plane of occipital bone, 121
Nuck, canal of, 1319
Nuclear juice, 8

layer of retina, 816, 817

membrane, 8, 9
Nucleolus, 8, 9, 10

false, 8

Nucleus or Nuclei, of origin (contd.), develop-

ment of, 592
pontis, 566

development of, 566

relation of, to transverse fibres of pons, 566
pulposus, 307
radicis descendentis nervi trigemini, 559
red, 613
roof, 577

relation of, to spino-cerebellar tract, 578
ruber, 586-588

origin of, 516
segmentation, 21
somatic afferent terminal, 506

efferent, 506
splanchnic afferent terminal, 506

efferent, 506
of tegmentum, 586
terminal, 505
of termination of nerves, 593
of thalamus, 611
tractus solitarii, 598

spinalis nervi trigemini, 559
trigeminal, 600

development of, 683
trochlear, 602
relation of, to medial longitudinal bundle,

602
vagus, 596

relation of, to fourth ventricle, 596
vestibular, 554, 604

early importance of, 575

relation of, to fourth ventricle, 604
Nuel, space of, 852
Number of bones, 265
Nutrient arteries, 87
Nymphæ, see Labia pudendi minora
Obelion, 171, 285
Obex, 579
Oblique chord, 328
line, anterior, of radius, 215

external, of mandible, 155
Oblique line of tibia, 249

vein of Marshall, 960
Obliquus externus abdominis muscle, 476
inferior, of neck, 444

of orbit, 453
internus abdominis muscle, 478
superior muscle of neck, 444

of orbit, 453

action of, 454

nerve-supply of, 454
Obliterated umbilical artery, 936
Obstetrical paralysis of Duchenne, 1395
Obturator artery, 940

abnormalities of, 1057
canal, 338
crest, 233
externus muscle, 413

action of, 414

nerve-supply of, 414
fascia, 489
foramen, 234
gland, 1017

Obturator nerve (contd.), accessory, 726

plexus, 723
tubercle, anterior, 234

posterior, 234
vein, 984
Occipital angle of parietal bone, 119

arteries, 895
bone, 120

architecture of, 270
basilar

part of, 123

ossification of, 124
cerebral surface of, 121
condyles of, 122

ossification of, 124
connexions of, 124
foramen magnum of, 123, 172, 178
lateral parts of, 121
morphology of, 290
nuchal lines of, 121

plane of, 121
ossification of, 124
relation of, to sutures, 165, 171
squamous part of, 121

ossification of, 124
variations in, 277
condyles, 122, 182

third, 278
crest, external, 121

internal, 121, 182
fontanelle, 293
lobe, 660

topography of, 1360
lymph glands, 998
nerves, 688-690
plane, 118
point, 183, 285
protuberance, external, 121, 178

internal, 121, 182
sinus, 183, 974

abnormalities of, 1058
sulcus, 661
triangle, 1395

vein, 965, 967
Occipito-atloid joint, 309

movements at, 311
ligaments, 310
Occipito-epistropheal ligaments, 311
Occipito-frontal fasciculus, 650
Occipito-mastoid suture, 165, 171
Oculo-motor nerve, 683

connexions of, 604
development of, 683
morphology of, 798
nucleus of, 603

splanchnic efferent nucleus of, 604
sulcus, 603
Oculo-nasal sulci, 49
Odontoblasts, 1245

processes of, 1247
Esophageal arteries of aorta, 925

of coronary, 929
of inferior thyreoid, 611

morphology of, 1046
groove of liver, 1189

of lung, 1094
opening of diaphragm, 473
orifice of stomach, 1163
plexus, 791
veins, 961
Esophagus, 1150
abdominal part of, 1152
cervical portion of, 1151

groove, 234

abnormalities of, 281
internus muscle, 418

action of, 418

nerve-supply of, 418
membrane, 338
nerve, 722

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