The circadian rhythm in mammals is regulated by two clusters of nerve cells called the suprachiasmatic nuclei (SCN) in the anterior hypothalamus.
哺乳动物中调节昼夜节律的是两个调节神经细胞群，称为视交叉上核中的下丘脑。
2
There is loss of anterior horn cells, so that patients present with progressive weakness that proceeds to paralysis from neurogenic muscular atrophy.
存在前角细胞丧失，因此病人表现为渐进性衰弱，这可能因神经源性肌萎缩而出现瘫痪。
3
Objective to observe the changes in ultrastructure and cellular function of the corresponding motor neurons in anterior horn and ganglion cells after ruptured intervertebral disc.