滑车神经

滑车神经
滑车神经
	The trochlear nerve entering the orbit, seen from above, supplies the superior oblique muscle
	The trochlear nerve (CN IV) seen with other cranial nerves. It is the only cranial nerve to emerge from behind the brainstem, and curves around it to reach the front
支配	Superior oblique muscle
标识字符
拉丁文	nervus trochlearis
MeSH	D014321
NeuroNames（英语：NeuroNames）	466
TA98	A14.2.01.011
TA2	6191
FMA	FMA:50865
	《神經解剖學術語》 [在维基数据上编辑]

滑车神经（英語：Trochlear nerve）是第4对脑神经，编号Ⅳ。^[1]

滑车神经为运动性神经，起于中脑下丘平面对侧滑车神经核，自中脑背侧下丘方出脑；自脑发出后，绕过大脑脚外侧前行，穿经海绵窦外侧壁向前，经眶上裂入眶，越过上直肌和上睑提肌向前内侧行，进入并支配上斜肌。

滑车神经是脑神经中最细的神经。

参考

^ A technical exception to this rule occurs in the nucleus of the third cranial nerve. The oculomotor nuclear complex contains subnuclei for each of the ocular muscles that it innervates. Axons from one of these subnuclei, the medial nucleus, decussate before exiting the nucleus itself. The medial nucleus of the oculomotor nuclear complex controls the contralateral superior rectus muscle. Cf. Aktekin M, Aldur MM, Bayramoglu A, Atasever A, Ozturk AH, Basar R. The organization of the somatic cell nuclei within the oculomotor nuclear complex in rats. Neuroanatomy 1:22-25, 2002