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Soleus muscle (contd.), surgical anatomy of, Sphenoid bone (contd.), great wings of, 134

1461, 1462

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zonularia, 819

Sperm cells, 11, 12, 16, 1288

Spermatic artery, internal, 928

abnormalities of, 1053

morphology of, 1047

fascia, 475, 477
funiculus, 1290, 1296
surgical anatomy of, 1430
vein, internal, 983

abnormalities of, 1058
development of, 1040
morphology of, 1048
surgical anatomy of, 1427

Spermatids, 17
accessory body of, 17
centrosomes of, 17
development of, 18
Spermatocyte, 12

of first order, 12, 16
of second order, 17

Spermatozoa, 17

axial filament, 17, 18

body, 18

centrosomes, 17

head, 17

neck, 17

sheath, mitochondrial, of, 18
spiral, of, 18
tail, end-piece, 18
end-ring, 18
Spheno-ethmoidal recess, 802
Sphenoid bone, 133

alæ, development of, 138
angular spine of, 135, 136
architecture of, 271
body of, 133
connexions of, 138
crest of, 133

orbital fissure, inferior, 137
ossification of, 138

pterygoid lamina of, 137
small wings of, 135
variations in, 278

Sphenoidal angle of parietal bone, 119

conchæ, 139

Sphenoidal crest of sphenoid bone, 135

process of palate, 152
sinuses, 271

skiagraphs of, 1372

surgical anatomy of, 1372

Spheno-mandibular ligament, 312

Spheno-palatine artery, 900
foramen, 185, 192, 152

ganglion, 775, 777

nerves, 775
notch, 152

roots of, 777
vein, 968

Spheno-parietal sinus, 975

suture, 164, 166

Spheno-petrous fissure, 176

Spheno-squamous suture, 176

Spheno-vomerine canal, 279
Spheno-zygomatic suture, 163
Sphere, attraction, 20

Sphincter ani externus, 486, 1232

action of, 1232

internus, 1232

pupillæ, 814

pyloric, 1166, 1174

recti, 1229

vaginæ, 487

vesicæ, 1284

Spina or Spine, angular, of sphenoid, 136, 167

frontal, 116

helicis, 828

iliaca anterior inferior, 229

superior, 228

posterior inferior, 229
superior, 229

surface anatomy of, 1455

ischiadica, 232

sexual differences of, 237
surface anatomy of, 1456
mentalis, 156

nasal, 116

nasalis anterior, 146, 164

posterior, 174

peroneal, 260

variations in, 282

pubic, 233, 1458

scapulæ, 202

sphenoidal, 136, 167

suprameatal, 126, 1366
of tibia, 246

trochlear, of frontal bone, 117
tympanica major, 831
minor, 831

Spinal arteries, 938– –

formation of, 1029
of intercostals, 926
of lateral sacral, 938
of vertebral, 907
column, 100, 102

foramen of cervical vertebræ, 90

of lumbar vertebræ, 95
of thoracic vertebræ, 93

ganglia, 685

medulla, 517, 539

INDEX.

Spinal medulla (contd.), anterior median fissure

of, 521

surgical anatomy of, 1443
antero-lateral column, 529
antero-median column of, 529

arrangement of nerve-fibres of white matter
in tracts, 532

cauda equina of, 519, 526

cell column, intermedio-lateral, 530
central canal of, 521, 523, 526
cervical enlargement of, 519, 524
cervix of, 523

changes in gray matter of, 524

columns of, 22, 520, 523, 528
anterior, 523, 528
antero-lateral, 529
central, 529

intermedio-lateral, 530

lateral, 523, 529

posterior, 522, 523, 525, 529

postero-lateral, 529

retro-postero-lateral, 529

commissure of, anterior white, 523, 539

gray, 523, 539

posterior, 523

component parts of white matter of, 531

conus medullaris of, 518, 524, 525

development of, 31, 33, 35, 520

dorsal nucleus of, 531, 538

enlargements of, 519, 524

surgical anatomy of, 1443

fasciculi of, anterior proprius, 535, 537, 538

lateral, 535

bulbo-spinal, 537, 538

collateral fibres of, 534, 535, 539

lateralis proprius, 538

olivo-spinal, 538

fasciculus cuneatus of, 526, 533

gracilis of, 526, 533

solitarius of, 598

(fasciculus of) posterior proprius, 535

rubro-spinal, 537, 538

septo-marginal, 535

spino-cerebellar anterior, 537, 538

posterior, 537, 538

spino-tectal, 537

(fasciculus of) spino-thalamic, 535, 537

anterior, 537, 538

posterior, 537

tecto-spinal, 537, 538

vestibulo-spinal, 537, 538

filum terminale of, 518, 526

externum, 526

internum, 526

fissures of, 522

antero-median, 522
intermedius posterior, 522
lateralis posterior, 522
postero-median (septum), 522
funiculi or tracts of, 535
anterior, 522, 525, 528, 539
antero-lateral, 522
of Burdach, 522
of Goll, 522

lateral, 522, 525

posterior, 521, 522, 525

postero-lateral, 584

solitarius, 598

gray matter of, 523, 525

inferior limit of, in child, 517

internal structure of, 523

intersegmental association fibres of, 535, 538

Spinal medulla (contd.), length of, 517
ligamenta denticulata of, 518, 675
longitudinal commissural fibres of, 537, 538
lumbar enlargement of, 519, 524
membranes of, 518, 669, 675
nerve-cells of, 528 et seq.

nerve-fibres in gray matter of, 531
nerve-fibres of, 531 et seq.
neuroglia of, 527

origin of nerves from, 519, 529, 533
posterior paramedian sulcus of, 522
postero-lateral column, 529
sulcus of, 522

postero-median column, 529

processus reticularis of, 524

regional differences in, 519, 527

regions of, 519

relation of, to vertebræ, 517, 1422

segments of, 519

sensory and motor distribution of various

segments of, 744, 752

septa of, 521, 522

substantia gelatinosa Rolandi, 523, 528

grisea, 520

substantia grisea centralis of, 528

reticularis of, 564

sulci of, 522

sulcus lateralis posterior of, 522

summary of chief characters, 527
surgical anatomy of, 1443, 1444
theca of, 518

tract or tracts of Burdach, 526, 533
anterior cerebro-spinal, 536, 539
cerebello-spinal, 531, 536

comma (fasciculus interfascicularis), 533
of Goll, 526, 533

of Gowers (fasciculus antero-lateral
superficial), 536

lateral cerebrospinal (crossed), 536,

538

of Lissauer (postero-lateral), 534
trigeminal root-fibres in, 601

veins of, 977

ventriculus terminalis of, 526
white matter of, 524, 531

Spinal nerves, 519, 678

anterior rami of, 692

anterior root, 520

development of nerve-roots, 679

distribution of the, 687

distribution of, to muscles and skin of the

limbs, 744

lower limb, cutaneous nerves, 747

muscular nerves, 748

upper limb, cutaneous nerves, 744

muscular nerves, 745

white rami communicantes of, 687

divisions or rami of, 686
formation of, 680

posterior rami of, 687
roots of, 520, 533
splanchnic parts of, 680
venous plexus, anterior, 976
posterior, 970

Spinalis dorsi muscle, 442
Spindle, achromatic, 10, 13
Spine, somatic parts of, 680
Spino-glenoid ligament, 320

Spino-thalamic tract, 537, 538

Spinous process of cervical vertebræ, 90, 93
of lumbar vertebræ, 95

of sacrum, 97

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INDEX.

Stomach (contd.), pyloric canal of, 1169
ligaments of, 1170

orifice of, 1169, 1173

surface anatomy of, 1416, 1417

surgical anatomy from the back, 1439
portion of, 1169

position of, 1416

surgical anatomy of, 1416, 1417

sphincter of, 1166, 1174
valve of, 1174

pylorus, 1165

radiography of, 1417

relations of, 1416
rugæ of, 1165

serous coat of, 1174
size of, 1171

at birth, 1171
structure of, 1174

submucous coat of, 1173

sulcus intermedius of, 1167
surfaces of, 1163

surgical anatomy of, 1416-1418
topography of, 1416, 1417, 1439
uncovered area of, 1170
veins of, 1991

X-ray examination of, 1173
Stomach-bed, 1170
Stomach-chamber, 1169

relations and connexions of, 1169

Stomata of capillaries, 867
Stomatodæum, 25, 27, 41
derivatives of the, 48

separation into nose and mouth, 49
Straight sinus, 974

Strand fronto-pontine, 653
Stratum bacillare retinæ, 816, 818
circulare membranæ tympani, 835
musculare ventriculi, 879
compactum, 57

corneum epidermis, 857, 859
unguis, 859

cutaneum membranæ tympani, 835
filamentosum, 858

germinativum epidermis, 857

unguis, 859

granulosum cerebelli, 581

epidermis, 858

ovarii, 1314

griseum centrale pedunculi cerebri, 584

colliculi superioris, 586

interolivary, 556

lemnisci, 586

longitudinale musculare ventriculi, 879

lucidum, 858

mucosum epidermis, 857

membranæ tympani, 835

opticum, 586, 815

colliculi cerebelli, 580

superioris, 586

papillare of skin, 857

pigmenti retinæ, 816, 817

radiatum membranæ tympani, 835

reticulare of skin, 857

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spongiosum, 57

development of, 304

of ankle-joint, 353

of carpo-metacarpal joints, 333

of elbow-joint, 325

of hip-joint, 341

of intercarpal joints, 331

interosseous, of leg, 350

Stratum, synovial (contd.), of intertarsal joints,

358

of knee-joint, 348

of mandibular joint, 312

of metacarpo-phalangeal joints, 333
of radio-carpal joint, 329

of radio-ulnar joint, 327

of shoulder-joint, 322
zonale cerebri, 585

sectionum corporum quadrigeminorum, 586
thalamencephali, 611

Streak, primitive, 23, 26
Strength of bones, 83

Stretching the sciatic nerve, 1457
Stria or Striæ, of Gennari, 644, 659
longitudinalis lateralis, 630

of corpus callosum, 629
medialis, 630
medullares, 615

fossæ rhomboideæ, 550
of thalamus, 611

olfactorii lobi intermedia, 624
lateralis, 624

of Retzius, 1122

terminalis, 610, 635, 636, 642
transversæ corporis callosi, 631
vascularis auris internæ, 849
Striate arteries, 905

veins, 970, 971
Stripe of Hensen, 850
Stroma of iris, 813
ovarii, 1313
vitreum, 819

Structure of bones, 83
cerebral hemispheres, 644
teeth, 1122
urethra, 1428
Stylo-auricularis muscle, 830
Styloid process of fibula, 250
of metacarpal bone, 225
variations in, 280

of radius, 216

surgical anatomy of, 1450
of temporal bone, 127, 168, 177
development of, 43, 44, 159
ossification of, 132

of ulna, 213

surface anatomy of, 1451

Stylo-glossus muscle, 463 ✓

Stylo-hyals, 132, 159

Stylo-hyoid ligament, 313, 1134
muscle, 461

action of, 462

Stylo-mandibular ligament, 313, 1134

Stylo-mastoid artery, 895

foramen, 129, 177

Stylo-pharyngeus muscle, 465

Subacromial bursa, 323

Subanconeus muscle, 382

Subarachnoid fluid, 671
space, 671, 672

surgical anatomy of, 1227
Subarcuate fossa, 130, 131
Subclavian artery, 909

abnormalities of, 1055

branches of, 910

development of, 1027-1028
ligature of, 1394

morphology of, 1046

surgical anatomy of, 1252, 1255

groove, 111
loop, 759

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544

of stomach, 1167

intertubercular, of humerus, 206
interventricular, 618

intraparietal, 661, 644, 664
lacrimal, of maxilla, 147

ossis lacrimalis, 147

lateral, of brain, 653, 1359, 1360
lateralis mesencephali, 584

posterior medulla oblongata, 544, 547
spinalis, 522

limiting, of Reil, 654

longitudinal, of cerebrum, 540, 676
longitudinalis, of heart, 618
lunatus, 660

malleolaris, 253, 249

medianus posterior medulla spinalis, 522
mento-labial, of lips, 1108

musculi flexoris hallucis longi calcanei, 260
tali, 257

peronæi calcanei, 260

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