Retina (contd.), macula lutea, 815
membranæ limitantes of, 817
nervous lamina of, 814
optic cup of, 815
disc of, 815

ora serrata of, 815
papilla nervi optici, 815
pars ciliaris retina, 815
iridica retinæ, 815
optica retina, 815
pigment of, 817

relation of optic fibres to, 620
rod-granules of, 817
rods of, 817
spongioblasts of, 817
stratum opticum of, 815
pigmenti of, 817
structure of, 815

of macula lutea of, 818
of ora serrata of, 818
sustentacular fibres of, 815, 817
vessels of the, 818
visual purple of, 815, 817
Retinacula cutis, 856

of hip-joint, 340

Retinaculum, superior peroneal, 422
Retinal layer of optic vesicle, 825
Retro-cæcal fossæ, 1218
Retro-colic fossæ, 1219
Retro-pharyngeal abscess, 1386
Retzius, space of, 493, 1429
striæ of, 1122
Rhinencephalon, 627, 682
development of, 33
Rhinion, 285

Rhinoscopy, anterior, 1378
posterior, 1385
Rhodopsin, 815
Rhombencephalon, 514, 515

development of parts of, 515
isthmus of, 515
Rhombic lip, 554

Rhomboideus major muscle, 368

minor muscle, 368

actions of, 369

surface anatomy of, 1437
Sacro-vertebral angle, 109

sexual differences in, 238
Sacrum, 96

ala of, 98

auricular surface of, 99
canal of, 99

lateral part of, 96
ossification of, 106
posterior surface of, 97
promontory of, 98
level of, 1443
serial homology of, 284
sex differences of, 99
variations in, 275
Sagittal fontanelle, 194
plane, 5

sulcus, 117, 119, 121
suture, 118, 119, 171
Salivary glands, 13 33
development of, 1249
structure of, 1140

Salpingo-palatine fold, 838, 1143
Salpingo-pharyngeal fascia, 838
fold, 838, 1143
muscle, 465

Santorini, cartilages of, 1065
ducts of, 1108, 1138, 1207

tubercle of, 1069

Saphenous artery, 951

nerve, 726

surface anatomy of, 1461, 1463

veins, 988, 989
Sartorius muscle, 406

arm, 378
of foot, 423

of leg, 422
of thigh, 403

intermusculare femoris laterale, 404

mediale, 404

fibulæ anterius, 422
posterius, 422
humeri laterale, 378
mediale, 378
interventricular, 1035
linguæ, 1129
mediastinal, 1083
membranaceum
musculare ventriculorum, 878
nasi, 185, 802
cartilage of, 800

development of, 40, 1033
surgical anatomy of, 1378
orbitale, of eyelids, 822
pectiniform, of penis, 1300
pellucidum, 628, 632
posterior median of, 521
posterius of arachnoid, 672
primum, 1033
scroti, 485
secundum, 1033

sinuum frontalium, 270
sphenoidalium, 271
spurium of heart, 1032
of tongue, 1129

transversum, 68, 74

ventriculorum, 878

of semicircular ducts, 848

tubæ, 833

of uterus, 1320
of vagina, 1320
ventricular, 878
development of, 1035
Serial homology, 3

of vertebræ, 283
Serous glands, 1132
Serratus anterior muscle, 372
action of, 372

surgical anatomy of, 1446
posterior inferior muscle, 439
superior muscle, 438
actions of, 439
Sesamoid bones, 228, 269

patella, 245

of short muscles of thumb, 228
cartilages of larynx, 1062

of nose, 800

Sexual eminence, 1336

Shaft of the femur, to expose the, 1456

of humerus, exposure of, 1449

Sheath, axillary, 1447

carotid, 447

dentinal, 1123
digital, 384

surgical anatomy of, 1453, 1454
of toes, 424

femoral, 405, 475

of flexor longus pollicis, 1453
medullary, 508, 532
mitochondrial, 18

primitive, 508

of prostate, 493
of rectus muscle, 483
Shin, 248

Short bones, 82

shoulder, bony parts of, 1444

surgical anatomy of, 1444
Shoulder-blade, 200'
girdle, 317

movements of, 319
joint, 320

Shoulder-joint, bursæ connected with, 323

movements at, 323, 377
nerves of, 703

Shrapnell, membrane of, 835
Sigmoid artery, 933
colon, 1223

mesocolon, 1223

Sigmoidoscope, examination by, 1433

Sinus, air, 84
aortic, 884

of Arlt, 825
cavernous, 975
circularis, 974

coronary, 959

abnormalities of, 1057
development of, 1032
morphology of, 1049
tributaries of, 959
costo-mediastinal, 1094
of dura mater, 972
of epididymis, 1287
ethmoidal, 185
frontal, 186, 1371

surgical anatomy of, 1371
great oblique, of pericardium, 882
transverse, of pericardium, 882
intercavernosus anterior, 974

posterior, 974
lactiferi, 1338
longitudinal vertebral, 976
of Maier, 825

maxillary, 149, 186

surgical anatomy of, 1379
oblique, of pericardium, 882
occipital, 183, 974
of palate bone, 186
parasinoidal, 974
petrosal, inferior, 975
superior, 975
phrenico-costal, 1093
piriform, 1069, 1147
of portal vein, 990
precervical, 43
rectal, 1231

rectus, 974

renalis, of kidney, 1265
rhomboid, 550

sagittal inferior, 668, 669, 974

abnormalities of, 1058

superior, 668, 973

surgical anatomy of, 1364
sphenoidal, 135, 183, 185, 1373

extent of, 133

opening into, 135

relation of, to nasal fossæ, 185
to orbit, 163

spheno-parietal, 975

squamo-petrosal, 1058
straight, 974

superior, of utricle, 846
tarsi, 355
tonsillar, 1145

transverse, 974

morphology of, 1040

surgical anatomy of, 1357, 1358

Skull, indices of (contd.), palato - maxillary

index, 287

superior facial index, 286
total facial index, 286
vertical index, 286
infra-temporal fossa, 168
inion, 285
interior of, 179
lambda, 285

lateral aspect of, 164
wall of orbit, 162
length of, 285
leptoprosopic, 286
leptorhine, 287
ligaments of, 312, 313
longitudinal arc of, 286
macrodont, 288

measurements of, 286
medial wall of orbit, 163
median sagittal section of, 183
megacephalic, 284

megadont, 288

megaseme, 287
mesaticephalic, 285
mesocephalic, 284
mesodont, 288
mesognathous, 287
mesorhine, 287

mesoseme, 287
mesuranic, 287
metopic, 172
metriocephalic, 286
microcephalic, 284

microdont, 288
microseme, 287
morphology of, 293
nasion, 285
obelion, 285

ophryon, 285
opisthion, 285
orbital fossæ, 160
orthocephalic, 286
orthognathous, 287
phænozygous, 171, 286
platyrhine, 287

posterior aspect of, 171
prechordal, 291
primordial, 292
prognathous, 287
pterion, 285

pterygo-palatine fossa, 170
rhinion, 285
roof of orbit, 160
in section, 179

sexual differences in, 193
skeleton of face, 163
stephanion, 285
sub-nasal point, 285
surgical anatomy of, 1358
tapeinocephalic, 286

temporal fossa, 166
trabecular portion of, 290, 291

upper aspect of, 171
vertebral portion of, 293
vertebrate theory of, 293
vertex, 285
as a whole, 159

Smegma embryonum, 79

præputii, 1299
"Snuff-box," anatomical, 400
Soleus muscle, 429

action of, 429