(IMAGE (TYPE "GIF") (PATH "gifs/Syllabus Chapters/Auditory/toon.auditory.gif")) (OUTLINE-COLOR (NAME "YELLOW")) (STRING-COLOR (NAME "RED")) (PIN-COLOR (NAME "RED")) (FRAME-INFO (STRING " Objectives. Learn the auditory pathway, from the spiral ganglion to the primary auditory cortex. Appreciate that auditory information is relayed bilaterally through the brainstem. The fibers in the vestibulocochlear nerve \(VIII\) send collaterals to both the dorsal and ventral cochlear nuclei. The dorsal cochlear nucleus fibers \(yellow\) project to the opposite lateral lemniscus. The ventral cochlear fibers \(black\) project to the superior olivary nuclei \(white\), and the lateral lemnisci on both sides. The lateral lemnisci end in the inferior colliculus. The inferior colliculus projects to the medial geniculate nucleus of the thalamus, via the brachium of the inferior colliculus. The medial geniculate nucleus projects to the transverse temporal gyrus via the auditory radiation; the auditory radiation is associated with the internal capsule \(its sublenticular part\). The cortex of the anterior transverse temporal gyrus is the primary auditory cortex.")) (REGION (TYPE "STRUCT") (ACTION "ventral cochlear nucleus") (ID 24) (CENTER-PT (176 215)) (COORD-LIST (173 207) (169 208) (165 212) (165 217) (168 222) (173 225) (178 226) (183 223) (186 219) (187 215) (186 211) (182 208) (178 207) (174 207) (173 207))) (REGION (TYPE "STRUCT") (ACTION "ventral cochlear nucleus") (ID 23) (CENTER-PT (236 216)) (COORD-LIST (235 207) (231 207) (227 210) (225 215) (226 220) (231 224) (236 225) (241 224) (245 220) (246 216) (246 212) (242 209) (238 207) (235 207))) (REGION (TYPE "STRUCT") (ACTION "dorsal cochlear nucleus") (ID 22) (CENTER-PT (244 194)) (COORD-LIST (240 182) (238 187) (236 192) (237 197) (241 202) (246 202) (250 198) (254 194) (254 190) (253 186) (249 184) (245 183) (240 182))) (REGION (TYPE "STRUCT") (ACTION "dorsal cochlear nucleus") (ID 21) (CENTER-PT (167 191)) (COORD-LIST (169 182) (165 182) (161 183) (158 188) (156 193) (156 198) (161 202) (167 203) (172 203) (176 199) (179 195) (179 191) (178 187) (176 183) (169 182))) (REGION (TYPE "STRUCT") (ACTION "superior olivary nucleus") (ID 20) (CENTER-PT (197 194)) (COORD-LIST (198 188) (194 189) (190 191) (188 196) (190 201) (195 202) (200 202) (203 198) (204 194) (202 190) (198 188))) (REGION (TYPE "STRUCT") (ACTION "superior olivary nucleus") (ID 19) (CENTER-PT (217 197)) (COORD-LIST (217 190) (213 191) (209 194) (209 199) (211 204) (216 207) (221 205) (225 201) (227 197) (225 193) (221 191) (217 190))) (REGION (TYPE "STRUCT") (ACTION "inferior colliculus ") (ID 18) (CENTER-PT (227 115)) (COORD-LIST (225 105) (221 105) (217 108) (214 113) (214 118) (219 121) (224 124) (229 125) (234 123) (236 119) (239 115) (238 111) (235 107) (231 106) (227 105) (225 105))) (REGION (TYPE "STRUCT") (ACTION "inferior colliculus ") (ID 17) (CENTER-PT (185 113)) (COORD-LIST (193 105) (189 105) (185 104) (181 104) (177 107) (176 112) (176 117) (179 122) (184 125) (189 125) (194 125) (198 121) (201 117) (202 113) (202 109) (198 106) (194 105) (193 105))) (REGION (TYPE "STRUCT") (ACTION "medial geniculate nucleus of thalamus") (ID 16) (CENTER-PT (163 96)) (COORD-LIST (162 86) (158 86) (154 89) (152 94) (152 99) (157 103) (162 104) (167 103) (172 100) (174 96) (173 92) (170 88) (166 86) (162 84) (162 86))) (REGION (TYPE "STRUCT") (ACTION "medial geniculate nucleus of thalamus") (ID 15) (CENTER-PT (248 92)) (COORD-LIST (254 83) (250 82) (246 82) (242 85) (238 88) (237 93) (238 98) (243 102) (248 102) (253 100) (256 96) (258 92) (257 88) (254 83))) (REGION (TYPE "STRUCT") (ACTION "brachium of the inferior colliculus") (ID 14) (CENTER-PT (175 101)) (COORD-LIST (176 109) (180 105) (183 101) (180 97) (176 95) (172 96) (168 100) (176 109))) (REGION (TYPE "STRUCT") (ACTION "brachium of the inferior colliculus") (ID 13) (CENTER-PT (236 102)) (COORD-LIST (226 104) (231 106) (236 108) (241 106) (244 102) (241 98) (237 95) (233 96) (229 100) (226 104))) (REGION (TYPE "STRUCT") (ACTION "transverse temporal gyrus") (ID 12) (CENTER-PT (279 67)) (COORD-LIST (271 73) (276 73) (281 74) (286 75) (288 71) (287 67) (283 64) (279 62) (275 63) (273 68) (271 73))) (REGION (TYPE "STRUCT") (ACTION "transverse temporal gyrus") (ID 11) (CENTER-PT (140 68)) (COORD-LIST (150 74) (146 73) (142 73) (138 73) (134 73) (130 73) (128 69) (130 65) (135 63) (140 62) (145 63) (147 68) (150 74))) (REGION (TYPE "STRUCT") (ACTION "auditory radiation") (ID 10) (CENTER-PT (143 85)) (COORD-LIST (152 99) (153 95) (154 91) (154 87) (150 85) (147 81) (144 77) (141 73) (137 72) (133 72) (132 77) (134 82) (137 87) (142 92) (147 96) (152 99) (152 99))) (REGION (TYPE "STRUCT") (ACTION "auditory radiation") (ID 9) (CENTER-PT (273 86)) (COORD-LIST (255 84) (256 89) (258 94) (263 95) (268 95) (273 93) (278 90) (281 86) (283 81) (285 77) (281 75) (277 74) (273 73) (271 78) (267 82) (263 83) (259 85) (255 86) (255 84))) (REGION (TYPE "STRUCT") (ACTION "lateral lemniscus") (ID 8) (CENTER-PT (225 176)) (COORD-LIST (213 120) (213 125) (213 130) (213 135) (213 140) (213 145) (213 150) (213 155) (213 160) (213 165) (212 170) (211 175) (211 181) (211 186) (214 191) (219 191) (224 191) (229 192) (234 192) (237 188) (239 184) (239 180) (239 176) (239 172) (239 168) (240 164) (240 160) (240 156) (241 152) (241 148) (241 144) (240 140) (240 136) (238 131) (237 127) (237 123) (213 120))) (REGION (TYPE "STRUCT") (ACTION "lateral lemniscus") (ID 7) (CENTER-PT (180 160)) (COORD-LIST (177 184) (182 185) (187 185) (192 185) (197 185) (201 181) (201 177) (201 173) (201 168) (201 164) (201 160) (201 156) (201 152) (201 148) (201 144) (201 140) (202 136) (202 132) (202 128) (202 124) (198 125) (194 125) (190 126) (186 126) (182 127) (177 184))) (REGION (TYPE "STRUCT") (ACTION "spiral ganglion") (ID 6) (CENTER-PT (139 224)) (COORD-LIST (136 217) (132 222) (132 227) (135 232) (140 235) (145 232) (147 228) (147 224) (146 220) (143 216) (136 217))) (REGION (TYPE "STRUCT") (ACTION "hair cell in cochlea") (ID 5) (CENTER-PT (112 242)) (COORD-LIST (110 253) (115 254) (120 254) (121 250) (122 246) (122 242) (122 238) (121 234) (120 230) (116 230) (112 231) (110 253))) (REGION (TYPE "STRUCT") (ACTION "cochlear part of vestibulocochlear nerve") (ID 4) (CENTER-PT (139 250)) (COORD-LIST (112 253) (117 253) (121 249) (126 250) (131 250) (135 246) (137 242) (136 238) (135 234) (140 235) (144 240) (144 245) (144 250) (143 255) (142 260) (138 259) (134 259) (129 258) (125 258) (121 258) (117 258) (113 258) (112 253))) (REGION (TYPE "STRUCT") (ACTION "cochlear part of vestibulocochlear nerve") (ID 3) (CENTER-PT (140 208)) (COORD-LIST (134 218) (139 217) (144 217) (146 213) (151 210) (156 210) (161 210) (166 210) (171 208) (174 204) (170 202) (166 202) (162 201) (158 201) (154 201) (149 201) (145 201) (141 201) (137 201) (133 202) (133 207) (133 212) (134 217) (134 218))) (REGION (TYPE "STRUCT") (ACTION "inferior collicular commissure") (ID 2) (CENTER-PT (207 109)) (COORD-LIST (195 104) (200 108) (201 113) (206 117) (211 117) (216 117) (215 113) (217 109) (222 105) (217 102) (213 103) (209 103) (205 103) (201 104) (195 104))) (REGION (TYPE "STRUCT") (ACTION "trapezoid fibers") (ID 1) (CENTER-PT (213 215)) (COORD-LIST (185 211) (186 216) (190 221) (195 221) (200 221) (205 220) (210 220) (215 220) (220 219) (219 215) (219 211) (219 207) (215 209) (211 209) (207 209) (203 210) (199 210) (195 210) (191 210) (187 210) (185 211)))