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