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and the superior rostral sulcus its ventral boundary; rostrally it extends almost to the margin of the frontal lobe. Cytoarchitecturally bounded internally by the ventral anterior cingulate area 24, externally by medial margins of the agranular frontal area 6, intermediate frontal area 8,
granular frontal area 9, frontopolar area 10, and prefrontal area 11.
33 - pregenual (area praegenualis). A narrow band located in the anterior cingulate gyrus
adjacent to the supracallosal gyrus in the depth of the callosal sulcus. Cytoarchitecturally
bounded by the ventral anterior cingulate area 24 and the supracallosal gyrus.
34 - dorsal entorhinal (area entorhinalis dorsalis). Located in the entorhinal area on the
medial aspect of the temporal lobe. It and the entorhinal area 28 together constitute
approximately the entorhinal area.
35 - perirhinal (area perirhinalis). Located along the rhinal sulcus. Cytoarchitectually
bounded medially by the entorhinal area 28 and laterally by the ectorhinal area 36.
36 - ectorhinal (area ectorhinalis). Located primarily in the fusiform gyrus, with its medial
boundary corresponding approximately to the rhinal sulcus. Cytoarchitecturally bounded laterally and caudally by the inferior temporal area 20, medially by the perirhinal area 35 and
rostrally by the temporopolar area 38.
37 - occipitotemporal (area occipitotemporalis). Located primarily in the caudal portions of the fusiform gyrus and inferior temporal gyrus on the mediobasal and lateral surfaces at the caudal extreme of the temporal lobe. Cytoarchitecturally bounded caudally by the peristriate area 19, rostrally by the inferior temporal area 20 and middle temporal area 21 and dorsally on the lateral aspect of the hemisphere by the angular area 39.
38 - temporopolar (area temporopolaris). Located primarily in the most rostral portions of the superior temporal gyrus and the middle temporal gyrus. Cytoarchitecturally bounded caudally by the inferior temporal area 20, the middle temporal area 21, the superior temporal area 22 and the ectorhinal area 36.
39 - angular (area angularis). Corresponds to the angular gyrus surrounding the caudal tip of the superior temporal sulcus. Dorsally it is bounded approximately by the intraparietal sulcus. Cytoarchitecturally bounded rostrally by the supramarginal area 40, dorsally and caudally by the peristriate area 19, and ventrally by the occipitotemporal area 37.
40 - supramarginal (area supramarginalis). Located primarily in the supramarginal gyrus surrounding the posterior ascending limb of lateral sulcus. Bounded approximately by the intraparietal sulcus, the inferior postcentral sulcus the posterior subcentral sulcus and the lateral sulcus. Cytoarchitecturally bounded caudally by the angular area 39, rostrally and dorsally by the caudal postcentral area 2, and ventrally by the subcentral area 43 and the superior temporal area 22.
41 - anterior transverse temporal (area temporalis transversa anterior). Occupies the anterior transverse temporal gyrus in the bank of the lateral sulcus on the dorsal surface of the temporal lobe. Cytoarchitecturally bounded medially by the parainsular area 52 and laterally by the posterior transverse temporal area 42.
42 - posterior transverse temporal (area temporalis transversa posterior). Located in the bank of the lateral sulcus o
n the dorsal surface of the temporal lobe. Cytoarchitecturally bounded medially by the anterior transverse temporal area 41 and laterally by the superior temporal area 22.
43 - subcentral (area subcentralis). Occupies the postcentral gyrus and the precentral gyrus between the ventrolateral extreme of the central sulcus and the depth of the lateral sulcus at the insula. Its rostral and caudal borders are approximated by the anterior subcentral sulcus and the posterior subcentral sulcus respectively. Cytoarchitecturally bounded rostrally by the agranular frontal area 6 and caudally, for the most part, by the caudal postcentral area 2 and the supramarginal area 40.
44 - opercular (area opercularis). Corresponds approximately to the opercular part of the inferior frontal gyrus. Bounded caudally by the inferior precentral sulcus and rostrally by the anterior ascending limb of lateral sulcus. It surrounds the diagonal sulcus. In the depth of the lateral sulcus it borders on the insula. Cytoarchitectonically bounded caudally and dorsally by the agranular frontal area 6, dorsally by the granular frontal area 9 and rostrally by the triangular area 45.
45 - triangular (area triangularis). Occupies the triangular part of the inferior frontal gyrus and, surrounding the anterior horizontal limb of lateral sulcus, a portion of the orbital part of inferior frontal gyrus. Bounded caudally by the anterior ascending limb of lateral sulcus, it borders on the insula in the depth of the lateral sulcus . Cytoarchitectonically bounded caudally by the opercular area 44, rostrodorsally by the middle frontal area 46 and ventrally by the orbital area 47.
46 - middle frontal (area frontalis media). Occupies approximately the middle third of the middle frontal gyrus and the most rostral portion of the inferior frontal gyrus. Cytoarchitecturally bounded dorsally by the granular frontal area 9, rostroventrally by the frontopolar area 10 and caudally by the triangular area 45.
47 - orbital (area orbitalis). Surrounds the caudal portion of the orbital sulcus from which it extends laterally into the orbital part of inferior frontal gyrus. Cytoarchitectonically bounded caudally by the triangular area 45, medially by the prefrontal area 11, and rostrally by the area frontopolaris 10.
48 - retrosubicular (area retrosubicularis). Located on the medial surface of the temporal lobe. Cytoarchitectually bounded rostrally by the perirhinal area 35 and medially by the presubiculum. (While described by Brodmann, it was not included in his areal maps of human cortex.)
52 - parainsular (area parainsularis) Located in the bank of the lateral sulcus on the dorsal surface of the temporal lobe. Its medial boundary corresponds approximately to the junction between the temporal lobe and the insula. Cytoarchitecturally bounded laterally by the anterior transverse temporal area 41.
Brodmann分区系统
Brodmann分区系统
Brodmann分区是一个根据细胞结构将大脑皮层划分为一系列解剖区域的系统。神经解剖学中所谓细胞结构（Cytoarchitecture），是指在染色的脑组织中观察到的神经元的组织方式。
Brodmann分区最早由德国神经科医生科比尼安·布洛德曼（Korbinian Brodmann）提出。他的分区系统包括每个半球的52个区域。其中一些区域今天已经被细分，例如23区被分为23a和23b区等。 从物种间差异来讲，同一分区号码在不同的物种间并不一定代表相似的区域。
人类大脑皮层的Brodmann分区
1，2和3区：体感皮层（习惯上常称为“3，1和2区”） 4区 - 初级运动皮层 5区 - 体感联合皮层 6区 - 前运动皮层 7区 - 体感联合皮层
8区 - 包括额页眼动区（Frontal eye field） 9区 - 后外侧前额叶皮层
10区 - 额极区（上额回和中额回最前侧的部分） 11区 - 额眶区（眶回，直回和上额回前侧的一部分） 12区 - 额眶区（上额回和下前回之间的区域） 13区 - 岛皮层 17区 - 初级视皮层 18区 - 视觉联合皮层 19区 - 视觉联合皮层 20区 - 下颞回 21区 - 中颞回
22区 - 上颞回，其前侧部分属于韦尼克区 23区 - 下后扣带皮层 24区 - 下前扣带皮层 25区 - 膝下皮层
26区 - 压外区（Ectosplenial area） 28区 - 后内嗅皮层 29区 - 压后扣带皮层 30区 - 扣带皮层的一部分 31区 - 上后扣带皮层 32区 - 上前扣带皮层
34区 - 前扣带皮层，位于海马旁回 35区 - 旁嗅皮层，位于海马旁回 36区 - 海马旁皮层 37区 - 梭状回 38区 - 颞极区
39区 - 角回，韦尼克区的一部分 40区 - 缘上回，韦尼克区的一部分 41，42区 - 初级听皮层和听觉联合皮层 43区 - 中央下区（Subcentral area） 44区 - 三角部，布洛卡区的一部分 45区 - 岛盖部，布洛卡区的一部分 46区 - 上外额叶皮层 47区 - 下额页皮层
48区 - 下脚后区，颞叶内侧的一小部分 49区 - 岛旁区，位于颞叶和岛叶的交界处。