节前

The preganglionic fibers of the autonomic nervous system originate from the spinal cord and extend to the ganglia.
自主神经系统中的 preganglionic纤维起源于脊髓，并延伸到神经节。
Preganglionic neurons in the brainstem control various bodily functions, such as heart rate and digestion.
脑干中的 preganglionic神经元控制着心率和消化等身体功能。
Damage to preganglionic nerves can lead to autonomic dysfunction, causing imbalances in blood pressure and body temperature.
损害 preganglionic神经可能导致自主功能障碍，血压和体温失衡。
During surgery on the cranial nerves, surgeons must be careful not to accidentally cut the preganglionic fibers to avoid affecting autonomic function.
在进行颅神经手术时，外科医生必须小心不要意外切到 preganglionic纤维，以免影响自主功能。
Preganglionic parasympathetic fibers innervate the smooth muscles of the digestive tract, promoting relaxation for bowel movements.
preganglionic副交感神经纤维支配消化道的平滑肌，促进排便时的肌肉松弛。
The preganglionic sympathetic fibers in the adrenal medulla release hormones that prepare the body for the "fight or flight" response.
肾上腺髓质中的 preganglionic交感神经纤维释放激素，使身体为“战斗或逃跑”反应做好准备。
The preganglionic sympathetic and parasympathetic nerves work together to regulate blood flow and metabolism in different organs.
preganglionic交感和副交感神经协同工作，调节不同器官的血流和新陈代谢。
The preganglionic fibers are part of the peripheral nervous system, which is responsible for transmitting signals from the central nervous system to the rest of the body.
preganglionic纤维是外周神经系统的一部分，负责将信号从中枢神经系统传输到身体其他部位。
In some diseases, preganglionic neurons may degenerate, leading to symptoms like dry mouth and difficulty swallowing, known as autonomic neuropathy.
在某些疾病中，preganglionic神经元可能退化，导致口干、吞咽困难等症状，即自主神经病变。
Research is ongoing to develop drugs that target preganglionic neurons to treat conditions like Parkinson's disease, which affects motor control and autonomic functions.
研究人员正在开发针对 preganglionic神经元的药物，以治疗如帕金森病等影响运动控制和自主功能的疾病。