illogical attitude <Chinese>不自然姿势（癔症性癫痫）
illusion <Chinese>错觉
imbecility <Chinese>痴愚
imipramine <Chinese>丙咪嗪
impinge <Chinese>侵犯
impotence <Chinese>阳萎
incisura <Chinese>切迹
incitogram <Chinese>冲动发放
inclusion body encephalitis <Chinese>包涵体脑炎
incomplete hemianopia <Chinese>不全偏盲
incongruous hemianopia <Chinese>非对称性同侧偏盲
incontinence <Chinese>失禁
incoordination <Chinese>失协调
increased intracranial pressure <Chinese>颅内压增高
indenolol <Chinese>茚心安
indomethacin <Chinese>吲哚美辛（消炎痛）
indusium griseum <Chinese>灰被
infantile dementia <Chinese>婴儿痴呆
infantile encephalopathy <Chinese>婴儿脑病
infantile hemiplegia <Chinese>婴儿偏瘫
infantile myopathy <Chinese>婴儿肌病
inferior cerebellar peduncle <Chinese>小脑下脚
inferior colliculus <Chinese>下丘
inferior fovea <Chinese>下凹
inferior frontal gyrus <Chinese>额下回
inferior frontal suleus <Chinese>额下沟
inferior horn of lateral ventricle <Chinese>侧脑室下角
inferior longitudinal fasciculus <Chinese>下纵束
inferior petrosal sinus <Chinese>岩下窦
inferior quadrigeminal brachium <Chinese>下丘臂
inferior sagittal sinus <Chinese>下矢状窦
inferior tempotal gyrus <Chinese>颞下回
inferior tempotal suleus <Chinese>颞下沟
infundibular recess <Chinese>漏斗隐窝
infundibulum <Chinese>漏斗
infusion <Chinese>注射
inhibitory area <Chinese>抑制区
inhibitory postsynaptic potential <Chinese>抑制性突触后电位
initial segment of axon <Chinese>轴突起始段
inoccipitia <Chinese>枕叶缺失
inosine <Chinese>肌苷
inositol nicotinate <Chinese>烟酸肌醇酯
inositol <Chinese>肌醇
insidious <Chinese>隐袭的
instantaneous <Chinese>瞬时
insula <Chinese>岛叶
insula， island of Reil <Chinese>脑岛
insulin <Chinese>胰岛素
intention neuralgia <Chinese>肋间神经痛
intention spasm <Chinese>意向性痉挛
intention tremor <Chinese>意向性震颤
interferon <Chinese>干扰素
interleukin-2 <Chinese>白细胞介素-2
intermediolateral column <Chinese>中间柱
intermesenteric plexus <Chinese>肠系膜间丛
intermittent claudication <Chinese>间歇性跛行
intermittent cramp <Chinese>间歇性痉挛
intermittent <Chinese>间歇
internal band of Baillarger <Chinese>拜劳格氏内带
internal capsule <Chinese>内囊
internal granular layer <Chinese>内颗粒层（大脑皮质）
internal limiting membrane <Chinese>内界膜
internal medullary lamina <Chinese>内髓板
internal meningitis <Chinese>硬脑膜内层炎
internal pyramidal layer <Chinese>内锥体层（大脑皮质）
internuclear ophthamoplegia <Chinese>核间性眼肌麻痹
interoceptor <Chinese>内感受器
interpeduncal fossa <Chinese>脚间窝
interpeduncular cistern <Chinese>脚间池
intersegmental reflex <Chinese>节段间反射
interventricular foramen <Chinese>室间孔
intracephalic <Chinese>脑内的
intracerebellar <Chinese>小脑内的
intracerebral <Chinese>大脑内的
intracranial pressure <Chinese>颅内压
intracranial <Chinese>颅内的
intradural <Chinese>硬脑膜内的
intrameningeal <Chinese>脑膜内的
intraneural plexus <Chinese>神经内丛
intraneural <Chinese>神经内的
intraparietal suleus <Chinese>顶内沟
intrasegmental reflex <Chinese>节段内反射
involuntary <Chinese>不随意
involution syndrome <Chinese>更年期综合征
ipsilateral <Chinese>同侧
iris <Chinese>虹膜
ischaemia <Chinese>缺血
ischemic cerebrovascular disease <Chinese>缺血性脑血管病
ischemic infract <Chinese>缺血性梗塞
ischemic myelomalacia <Chinese>缺血性脊髓软化
ischemic myopathy <Chinese>缺血性肌病
ischemic neuropathy <Chinese>缺血性神经病
ischialgia <Chinese>坐骨神经痛
isoniazid <Chinese>异烟肼
isoprinosine <Chinese>异丙肌苷
isothermognosis <Chinese>等温感觉
isothiazine <Chinese>异噻嗪
jackknife seizure <Chinese>折刀状发作
Jacobson's organ <Chinese>犁鼻器
Jakob-Creutzfeldt disease <Chinese>海绵状脑病
jaw clenching <Chinese>牙关紧闭
jaw reflex <Chinese>下颌反射
jaw-winking reflex <Chinese>下颌瞬目反射
jerk nystagnmus <Chinese>跳动性眼球震颤
joint receptor <Chinese>关节感受器
Jolly's reaction <Chinese>约利反应
juvenile gangliosidosis <Chinese>少年型神经节苷脂沉积病
Kae's Bekhterev layer <Chinese>克斯——别赫捷列夫层（大脑皮层外粒层内的纤维层）
Kae's feltwork <Chinese>克斯神经纤维网（在大脑皮层内）
Kae's line <Chinese>克斯线（大脑皮层外粒层内的纤维层）
Kafka's test <Chinese>卡夫卡试验（检脑脊髓梅毒）
Kalmuk idiocy <Chinese>伸舌性白痴
Kaplan's test <Chinese>卡普兰试验（检脑脊液球蛋白及白蛋白）
Kayser's disease <Chinese>肝豆状核变性
Kearn-Sayer syndrome <Chinese>凯－塞综合征
Kehrer's reflex <Chinese>克勒尔反射（听睑反射）
Kennedy's syndrome <Chinese>肯尼迪综合征（脑前叶肿瘤征）
keraunoneurosis <Chinese>闪电性神经病
kernicterus <Chinese>核黄疸
Kernig sign <Chinese>克氏征
Kernohan notch <Chinese>颞叶疝压迹
kinesthesia <Chinese>运动觉
Klippel-Feil syndrome <Chinese>先天性颈椎缺少或融合
Klumpke paralysis <Chinese>臂丛麻痹的下丛型
Kluver-Bucy syndrome <Chinese>双侧颞叶切除综合征
knee jerk <Chinese>膝反射
Kolliker's column <Chinese>肌原纤维
Kolliker's interstitial granules <Chinese>肌浆间质粒
Kolliker's membrane <Chinese>蜗管网状膜
Kolliker's nucleis <Chinese>脊髓中央灰质
koniocortex <Chinese>粒状皮层
Kopressoff's center <Chinese>排尿中枢
Korsakov syndrome <Chinese>虚构－遗忘综合征
Korte-Ballance operation <Chinese>科尔特——巴郎斯手术（面神经舌下神经吻合术）
Koshevnikoff's disease <Chinese>持续性不全癫痫
Krabbe leukodystrophy <Chinese>克拉勃脑白质营养不良
Krause's line <Chinese>Z盘
Krishaber's disease <Chinese>脑——心综合征
Kuf disease <Chinese>青少年型家族性黑蒙性白痴
Kummell disease <Chinese>脊柱压缩性骨折
Kussmaul's aphasia <Chinese>有意识的失语
Kussmaul's paralysis <Chinese>急性热病性多神经炎
Kwashiorkor disease <Chinese>严重蛋白缺乏综合征
kyphoscoliosis <Chinese>脊柱后侧凸
kyphosis <Chinese>脊柱后凸
labetatal <Chinese>柳苄心胺
labryrinthine nystagmus <Chinese>迷路性眼球震颤
labyrinth <Chinese>迷路
labyrinthine reflex 迷路反射
labyrinthitis <Chinese>迷路炎
lachrymation <Chinese>流涎
lacrimal reflex <Chinese>沁泪反射
lacriml glands <Chinese>泪腺
lactasin <Chinese>乳酶生
actulose <Chinese>乳果糖