在动脉分布密度方面，丘脑前核群最少，而背外侧核、腹后外侧核、中央正中核最多。
Many of these arteries are distributed over dorsolateral nucleus, ventral Fosterolateral nucleus and centromedian nucleus and a few over anterior nuclear group;
来自海马下托复合体皮质投射神经元轴突终末，在丘脑前核与投射至海马下托皮质的神经元树突形成非对称性轴-树突触。
In anterior thalamic nucleus corticothalamic projection neuron terminals form asymmetric synaptic contacts with HRP-labelled thalamocortical projection neurons by axo-dendritic synapses.
结论：1中央前沟首次出现在豆状核及内囊前肢出现而前连合及背侧丘脑尚未出现的1 ~ 2个断面上。
Conclusion: the precentral sulcus appears on the 1 2 sections that the lenticular nucleus and anterior limb of internal capsule appear but the anterior commissure and dorsal thalamus doesn't appear.
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