easy - head - 头
easy - face - 脸
easy - eye - 眼睛
easy - nose - 鼻子
easy - mouth - 嘴巴
easy - ear - 耳朵
easy - hair - 头发
easy - neck - 脖子
easy - shoulder - 肩膀
easy - arm - 手臂
easy - hand - 手
easy - finger - 手指
easy - thumb - 大拇指
easy - leg - 腿
easy - knee - 膝盖
easy - foot - 脚
easy - toe - 脚趾
easy - back - 背部
easy - chest - 胸部
easy - stomach - 肚子
easy - belly - 腹部
easy - heart - 心脏
easy - brain - 大脑
easy - bone - 骨头
easy - skin - 皮肤
easy - blood - 血液
easy - tooth - 牙齿
easy - tongue - 舌头
easy - lip - 嘴唇
easy - chin - 下巴
easy - cheek - 脸颊
easy - forehead - 额头
easy - eyebrow - 眉毛
easy - eyelash - 睫毛
easy - eyelid - 眼皮
easy - pupil - 瞳孔
easy - iris - 虹膜
easy - nostril - 鼻孔
easy - jaw - 下巴
easy - gum - 牙龈
easy - throat - 喉咙
easy - voice - 声音
easy - breath - 呼吸
easy - lung - 肺
easy - rib - 肋骨
easy - spine - 脊柱
easy - hip - 臀部
easy - waist - 腰
easy - elbow - 肘
easy - wrist - 手腕
easy - palm - 手掌
easy - fist - 拳头
easy - knuckle - 指关节
easy - nail - 指甲
easy - ankle - 脚踝
easy - heel - 脚后跟
easy - sole - 脚底
easy - muscle - 肌肉
easy - vein - 静脉
easy - artery - 动脉
easy - nerve - 神经
easy - liver - 肝脏
easy - kidney - 肾脏
easy - stomach - 胃
easy - intestine - 肠
easy - bladder - 膀胱
easy - spleen - 脾脏
easy - pancreas - 胰腺
medium - skull - 头骨
medium - temple - 太阳穴
medium - scalp - 头皮
medium - nape - 后颈
medium - collarbone - 锁骨
medium - breastbone - 胸骨
medium - ribcage - 胸腔
medium - abdomen - 腹部
medium - navel - 肚脐
medium - groin - 腹股沟
medium - buttock - 臀部
medium - thigh - 大腿
medium - calf - 小腿
medium - shin - 胫骨
medium - kneecap - 膝盖骨
medium - hamstring - 腿筋
medium - quadriceps - 股四头肌
medium - biceps - 二头肌
medium - triceps - 三头肌
medium - forearm - 前臂
medium - upper arm - 上臂
medium - armpit - 腋窝
medium - shoulder blade - 肩胛骨
medium - backbone - 脊梁骨
medium - tailbone - 尾骨
medium - pelvis - 骨盆
medium - femur - 股骨
medium - tibia - 胫骨
medium - fibula - 腓骨
medium - humerus - 肱骨
medium - radius - 桡骨
medium - ulna - 尺骨
medium - carpal - 腕骨
medium - metacarpal - 掌骨
medium - phalanx - 指骨
medium - tarsal - 跗骨
medium - metatarsal - 跖骨
medium - cartilage - 软骨
medium - ligament - 韧带
medium - tendon - 肌腱
medium - joint - 关节
medium - socket - 关节窝
medium - marrow - 骨髓
medium - membrane - 膜
medium - tissue - 组织
medium - organ - 器官
medium - gland - 腺体
medium - hormone - 荷尔蒙
medium - enzyme - 酶
medium - protein - 蛋白质
medium - cell - 细胞
medium - nucleus - 细胞核
medium - chromosome - 染色体
medium - gene - 基因
medium - DNA - DNA
medium - RNA - RNA
medium - plasma - 血浆
medium - platelet - 血小板
medium - red blood cell - 红细胞
medium - white blood cell - 白细胞
medium - antibody - 抗体
medium - antigen - 抗原
medium - immune system - 免疫系统
medium - lymph - 淋巴
medium - lymph node - 淋巴结
medium - tonsil - 扁桃体
medium - thymus - 胸腺
medium - thyroid - 甲状腺
medium - parathyroid - 甲状旁腺
medium - adrenal gland - 肾上腺
medium - pituitary gland - 垂体
medium - pineal gland - 松果体
medium - hypothalamus - 下丘脑
medium - cerebrum - 大脑
medium - cerebellum - 小脑
medium - brainstem - 脑干
medium - cortex - 皮层
medium - hippocampus - 海马体
medium - amygdala - 杏仁核
medium - thalamus - 丘脑
medium - medulla - 髓质
medium - spinal cord - 脊髓
medium - neuron - 神经元
medium - synapse - 突触
medium - axon - 轴突
medium - dendrite - 树突
medium - myelin - 髓鞘
medium - reflex - 反射
medium - sensation - 感觉
medium - perception - 知觉
hard - cerebral cortex - 大脑皮层
hard - frontal lobe - 额叶
hard - parietal lobe - 顶叶
hard - temporal lobe - 颞叶
hard - occipital lobe - 枕叶
hard - corpus callosum - 胼胝体
hard - basal ganglia - 基底神经节
hard - substantia nigra - 黑质
hard - ventricle - 脑室
hard - meninges - 脑膜
hard - dura mater - 硬脑膜
hard - arachnoid - 蛛网膜
hard - pia mater - 软脑膜
hard - cerebrospinal fluid - 脑脊液
hard - optic nerve - 视神经
hard - auditory nerve - 听神经
hard - olfactory nerve - 嗅神经
hard - vagus nerve - 迷走神经
hard - sciatic nerve - 坐骨神经
hard - ulnar nerve - 尺神经
hard - radial nerve - 桡神经
hard - median nerve - 正中神经
hard - femoral nerve - 股神经
hard - tibial nerve - 胫神经
hard - autonomic nervous system - 自主神经系统
hard - sympathetic - 交感神经
hard - parasympathetic - 副交感神经
hard - somatic - 躯体神经
hard - sensory neuron - 感觉神经元
hard - motor neuron - 运动神经元
hard - interneuron - 中间神经元
hard - ganglion - 神经节
hard - plexus - 神经丛
hard - esophagus - 食道
hard - duodenum - 十二指肠
hard - jejunum - 空肠
hard - ileum - 回肠
hard - colon - 结肠
hard - cecum - 盲肠
hard - appendix - 阑尾
hard - rectum - 直肠
hard - anus - 肛门
hard - bile duct - 胆管
hard - gallbladder - 胆囊
hard - bile - 胆汁
hard - gastric juice - 胃液
hard - saliva - 唾液
hard - salivary gland - 唾液腺
hard - parotid gland - 腮腺
hard - sublingual gland - 舌下腺
hard - submandibular gland - 颌下腺
hard - pharynx - 咽
hard - larynx - 喉
hard - trachea - 气管
hard - bronchus - 支气管
hard - bronchiole - 细支气管
hard - alveolus - 肺泡
hard - diaphragm - 横膈膜
hard - pleura - 胸膜
hard - pericardium - 心包
hard - myocardium - 心肌
hard - endocardium - 内心膜
hard - atrium - 心房
hard - ventricle - 心室
hard - valve - 瓣膜
hard - aorta - 主动脉
hard - vena cava - 腔静脉
hard - pulmonary artery - 肺动脉
hard - pulmonary vein - 肺静脉
hard - coronary artery - 冠状动脉
hard - carotid artery - 颈动脉
hard - jugular vein - 颈静脉
hard - capillary - 毛细血管
hard - endothelium - 内皮
hard - epithelium - 上皮
hard - connective tissue - 结缔组织
hard - adipose tissue - 脂肪组织
hard - mucous membrane - 粘膜
hard - serous membrane - 浆膜
hard - synovial membrane - 滑膜
hard - peritoneum - 腹膜
hard - mesentery - 肠系膜
hard - omentum - 网膜
hard - fascia - 筋膜
hard - aponeurosis - 腱膜
hard - bursa - 滑囊
hard - meniscus - 半月板
hard - intervertebral disc - 椎间盘
hard - vertebra - 椎骨
hard - sacrum - 骶骨
hard - coccyx - 尾骨
hard - sternum - 胸骨
hard - scapula - 肩胛骨
hard - clavicle - 锁骨
hard - patella - 髌骨
hard - mandible - 下颌骨
hard - maxilla - 上颌骨
hard - zygomatic bone - 颧骨

