388 INDEX 



Island of Reil. See Insula. 

 Iter a tertio ad quartum ventriculum. See 

 Aqueductus cerebri. 



JELLY-FISHES, 19 



Joints, sensory fibers of, 72 



KRAUSE, end-bulb of, 68 



LAMINA affixa, 215 



alar. See Plate, alar. 



basal. See Plate, basal. 



medullaris involuta. See Stratum lacunosum. 



quadrigemina, 130, 158 



rostralis, 223, 243 



septi pellucidi, 272 



terminalis, 25, 33, 223, 231 

 Laminae medullares of lentiform nucleus, 254 



thalami, 216 

 Lancisi, nerve of. See Stria longitudinalis me- 



dialis. 



Lateral line organs, 356 

 Layers of cerebellar cortex, 208 



of cerebral cortex, 286, 287 



ependymal, 37 



mantle, 37, 42, 196 



marginal, 37, 42, 196 



of retina, 225 



Lemniscus, lateral, 130, 157, 163, 165, 166, 186, 

 187, 309 



medial, 135, 138, 145, 153, 163, 219, 313 



spinal. See Tract, spinothalamic. 



trigeminal. See Path, secondary afferent, of 



trigeminal nerve. 

 Ligamentum denticulatum, 74 

 Limen insulae, 237, 268 

 Line (or lines) of Baillarger, 283 



of.Gennari, 283 

 Linea splendens, 74 

 Lingula of cerebellum, 197 

 Lissauer, tract of. See Fasciculus dorsolater- 



alis. 



Lobe (lobus or lobes) of cerebellum, 197, 198, 

 200, 201, 202 



of cerebrum, 234 



frontal, 234 



inferior, 28 



insular. See Insula. 



limbic. See Cyrus fornicatus. 



lineae lateralis, 27 



occipital, 236, 238 



olfactory, 267 



optic, 27, 28, 165 



parietal, 236 



pyriform. See Area, pyriform. 



temporal, 235 



visceral, 27 

 Lobule (or lobulus) ansiformis, 201 



bi venter, 199 



centralis, 197 



paracentral, 240, 290 



paramedianus, 201 



parietal, inferior, 236 

 superior, 236 



postcentral. See Gyrus longus insulae. 



precentral. See Gyri breves insulae. 



quadrangularis, 198 



quadrate. See Precuneus. 



semilunaris, inferior, 198 



Lobule semilunaris, superior, 198 



simplex, 200 

 Localization of function in cerebellum, 202 



in cerebral cortex, 290 



in thalamus, 219 

 Locus caeruleus, 128 

 Luschka, foramen of. See Aperture, lateral, of 



fourth ventricle. 



Luys, nucleus of. See Nucleus hypothalamicus. 

 Lyra. See Commissure, hippocampal. 



MACROSMATIC mammals, 265 



Magendie, foramen of. See Aperture, medial, of 



fourth ventricle. 

 Mammillary body, 222, 280 

 Mantle. See Cerebral cortex. 



layer. See Layer. 



Marchi stain for degenerated nerves, 360 

 Martinotti, cells of, 285 

 Massa intermedia, 216 

 Matter, central gray, 136, 158 

 gray, 42, 79, 87 

 white, 42, 79, 86 

 Medulla oblongata, 114, 118 

 closed portion of, 119 

 development, 35. (See also Myelencepha- 



lon.) 



in the dogfish, 26, 27, 28 

 fissure, anterior median, 119 



posterior median, 119 

 form, 118, 119, 120, 121, 122 

 gray matter, 136 

 internal structure, 132 

 length, 118 



motor nuclei, 170, 174 

 open portion of, 119 

 sensory nuclei, 180, 182 

 sulci, 119 



spinalis. See Spinal cord. 

 Meissner, corpuscles of, 68 



plexus of, 351 

 Meninges, 73, 74 

 Merkel, corpuscle of, 68 

 Mesencephalon, 129, 158 

 development, 24, 31, 35, 36 

 in the dogfish, 27, 28 

 form, 129 



internal structure, 158 

 Metamerism, 58. (See also Segmentation.) 

 Metathalamus, 220 

 Metencephalon, 31, 33, 36 

 Meynert, fasciculus retroflexus of, 220 



fountain decussation of. See Decussation, 



dorsal tegmental. 

 Microsmatic mammals, 265 

 Mid-brain. See Mesencephalon. 

 Mitochondria, 49 

 Molecular layer of cerebellum, 208 



of cerebral cortex, 286 



Monakow, bundle of. See Tract, rubrospinal. 

 Monro, foramen of. See Foramen, interventric- 



ular. 



Monticulus, 198 



Moss-fibers of cerebellum, 209, 210 

 Motor apparatus, 316 



area of cerebral cortex, 290, 317, 318 

 end-plate, 62 

 Muscle, branchial, 174 

 cardiac, innervation of, 353 



