The olfactory bulbs transmit that information back to the brain.

大脑嗅球将嗅觉信息传输回大脑。

Then evidence began to emerge of young neurons in the brains of adult rats and mice, -specifically in the olfactory bulb, which processes smell, and the dentate gyrus.

随后，成年大鼠和小鼠的大脑中出现了年轻神经元的证据，特别是在处理气味的嗅球和齿状回中。

These neurons migrate down from the olfactory placode and get embedded in the cribriform plate, which is a bone plate that separates the nasal cavity from the brain, forming the olfactory bulb.

这些神经元嗅觉基迁移下来，并嵌入筛中，即将鼻腔与大脑隔开的，而形成嗅球。

The vapours pass through your mouth, around the soft palate, into the nasal cavity and to the olfactory bulb.

蒸汽通过口腔，绕过软腭，进入鼻腔和嗅球。

One of the big surprises was the size of the olfactory bulbs, part of the brain associated with processing information about smells in the environment.

让我们吃惊的是，霸王龙大脑嗅球的大小，大脑的一分与处理环境中的气味信息密不可分。

You know, they access the olfactory bulb.

你知道，它们会接触到嗅球。

In many mammals, like dogs, these bulbs sit right at the front of the skull and are big compared to the rest of their brains — in mice, for instance, they make up about 2 percent of total brain volume.

在许多哺乳动物中，比如狗，这些嗅球位头的前， 并且它们的大脑来说体积较大——例如， 在小鼠中，它们占大脑总体积的大约2%。

So all the receptors of one kind go up in one bunch of fibers, another group go up another, and those fibers that all come from one receptor type go to a glomerulus, a structure in the olfactory brain.

所以同一类型的受体集中沿着一组神经纤维上传，另一组受体则沿着另一组神经纤维上传，而来自同一种受体的所有神经纤维都会到达一个嗅球，这是嗅觉大脑中的一种结构。

The catnip stimulates three main areas of the cat's brain; the olfactory bulb which processes scent, the amygdala which is involved in emotions and decisions, and the hypothalamus which is in charge of sexual response among other things.

猫薄荷刺激猫大脑的三个主要区域；处理气味的嗅球， 参与情绪和决策的杏仁核， 以及负责性反应等的下丘脑。

Scientists do have a theory of how the virus could travel to the brain: from the nose, and then upward through the olfactory bulb, which connects to the brain.

科学家确实有一个理论解释病毒是如何到达大脑的：鼻子出发，然后通过与大脑连的嗅球向上移动。

There are a few places you produce new neurons, like the olfactory bulb, the dentate gyrus, or the hippocampus, a few places, but these are far and few between.

有一些地方会产生新的神经元，比如嗅球、齿状回或海马体，但这些情况非常罕见。

Roja Dove, a perfumer, told the BBC that when we are born, the olfactory bulb, which is the area in our brain that processes smell, is empty.

调香师罗哈·多夫（Roja Dove）告诉BBC， 当我们出生时， 嗅球，也就是我们大脑中处理气味的区域， 是空的。

During the 1870s, Italian biologist and pioneering neuroanatomist Camillo Golgi produced detailed descriptions of the spinal cord and the brain's olfactory lobe, cerebellum and hippocampus.

19世纪70年代，意大利生物学家、神经解剖学先驱卡米洛·高尔基脊髓及大脑的嗅球、小脑和海马体进行了详细描述。

See, the olfactory bulb, which processes odors, is connected to two important structures involved in memory and emotion: the hippocampus and the amygdala.

你看，处理气味的嗅球与记忆和情感中涉及的两个重要结构连：海马体和杏仁核。

When an odor molecule binds to a scent receptor, it sends an electrical signal from the sensory neurons to our brain's olfactory bulbs.

当气味分子与香味受体结合时，它会感觉神经元向我们大脑的嗅球发送一个电信号。

So this is just an image of the olfactory peduncle in the human on the left and the dog on the right.

因此，这是一幅左侧显示人类嗅球，右侧展示狗嗅球的图像。

And we also have a part of the brain called the olfactory cortex, which is responsible for analyzing what we smell.

我们大脑中也有一分叫做嗅球，负责分析我们闻到的气味。

The glomeruli then send that information to your brain's cortex.

然后嗅球将这些信息传递给大脑皮层。

For example, here are the paths extending from human olfactory peduncle to other regions.

例如，以下展示的是人类嗅球延伸至其他区域的路径。

So unless you're talking about the olfactory bulb where you have constant turnover throughout the lifespan, you have the same hippocampal neurons, except a small population, same hippocampal neurons, cortical neurons, retinal neurons that you were born with.

因此，除非你讨论的是嗅球，那里在整个生命过程中神经元不断更新，否则你拥有的海马神经元（除了一小分外）、皮质神经元和视网膜神经元，都是与生俱来的。