和放松相关的副交感神经系统纤维只存在于骨髓的颈部及荐骨(骨盆)区域。
Parasympathetic fibers concerned with relaxation emerge only from the neck (cervical) and sacral (pelvic) areas of the spinal cord.
作者认为，胸腺皮质和髓质都接受副交感的胆碱能神经纤维的支配，后者对胸腺细胞和肥大细胞等可能起调节作用。
This study suggests that the cortex and medulla of thymus are innervated by parasympathetic cholinergic nerve fibers, which may regulate the thymocytes and mast cells.
目的：探讨脑性瘫痪大鼠交感神经与骨骼肌红、白纤维之间的关系。
Objective: To detect the relationships between twitch muscle fibre and sympathetic nerve on central spastic palsy rats.
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