This hypoxia also causes the parasympathetic nerve fibers to die off.

这种缺氧还会导致副交感神经纤死亡。

But it's not because fingers have more nerve fibers.

但这并不是因为手指部分汇集更多神经纤的缘故。

The excitation is passed to a nerve fiber, and then propagates into the brain.

这种兴奋状态被传递给神经纤，随后传导进大脑。

And finally, the nerve fibers themselves have different structures.

最后，神经纤有不同的结构。

That's where the auditory nerve fibers that encode information about sound connect to the brain stem.

这里是编码声音信息的听觉神经纤与脑干连接的地方。

The tunica externa also has nerve fibers, lymphatic vessels, and in the biggest vessels, the protein elastin.

外膜也有神经纤、淋巴管，最大的血管中也有弹性蛋白。

In both cases, the parasympathetic nerve fibers in the cavernosal spaces release acetylcholine from their nerve endings.

这两种情况下，副交感神经纤绵体间隙通过神经末梢释放乙酰胆碱。

But the nerve fibers of your parasympathetic system begin both above and below where the sympathetic ones do.

但是副交感神经系统的神经纤是从交感神经的上方和下方开始的。

In this case, some of them become neuroblasts, and eventually the nerve fibers of the plexuses in the gut.

这种情况下，其中一些变成了神经母细胞，最终成为肠神经丛的神经纤。

Papilledema is the swelling of the optic disc, which is the point where the optic nerve fibers leave the retina.

视神经乳头水肿是指视盘的肿胀，视盘是视神经纤离开视网膜的部位。

Damaged parasympathetic nerve fibers can't release acetylcholine, so there's less nitric oxide synthase activation, and less nitric oxide is produced.

受损的副交感神经纤不能释放乙酰胆碱，因此被激活的一氧化氮合酶较少，产生的一氧化氮也较少。

Nerve fibers are either dendrites that receive signals from other neurons, or axons that send signals along to other neurons.

神经纤分为两种，一种是接收信号的树突，一种是向其他神经元传递信号的轴突。

Myelin is an insulator and speeds up the electrical signals zipping down the nerve fiber.

髓磷脂是一种绝缘体，可加快电信号神经纤中的传输速度。

The two hemispheres are connected by a bundle of nerve fibers called the corpus callosum.

这两个半球由一束叫做胼胝体的神经纤连接。

The young brain is largely not myelinated. Myelin is the coating of nerve fibers that connect nerve cells.

年轻的大脑基上没有髓鞘。髓鞘是连接神经细胞的神经纤的涂层。

Scientists estimate that more than 100,000 nerve fibers make up this system, forming a two-way superhighway of constant information.

科学家估计，超过10万根神经纤组成了这个系统，形成了一条持续信息的双向高速公路。

Females have more nerve fibers than men, and there's a hormonal influence to a variety of chronic pain conditions.

女性比男性有更多的神经纤，荷尔蒙对各种慢性疼痛有影响。

Their whiskers, or vibrissae, are composed of keratin and full of nerve fibers that run deep into the connective tissue of their face.

它们的胡须，或触须，由角蛋白组成，富含神经纤，神经纤深入其脸部结缔组织。

If nerve fibers are activated repeatedly, the brain may decide they need to be more sensitive to adequately protect the body from threats.

如果反复激活神经纤，大脑可能会决定它们需要更敏感以充分保护体免受威胁。

Nerve fibers are either dendrites that receive signals from other neurons, or axons that send signals called action potentials along to other neurons.

神经纤，包括从别的神经元接收信号的树突，和向别的神经元发送动作电位信号的轴突。