The upper respiratory system includes the mouth, nose, nasal cavity, sinuses, and the pharynx.

上呼系统包括嘴、鼻子、鼻腔、鼻窦、和咽。

It's what separates the nasal cavity from the mouth.

它把鼻腔和口腔分隔开来。

On the other hand, rhinoviruses commonly infect the epithelium of the respiratory mucosa, which lines the nasal cavity.

另一方面，鼻病毒通常会感染鼻腔周围的呼道粘膜上皮细胞。

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。

This is your olfactory system's main organ — a small yellowish patch of tissue on the roof of the nasal cavity.

这是你嗅觉系统的主要器官——鼻腔顶部的一小片黄色组织。

When you breathe in, air flows through the nostrils and enters the nasal cavity which is lined by cells that release mucus.

气时，气流通过鼻孔进入鼻腔，鼻腔中有大量分泌粘液的细胞。

Turns out, the difference has to do with the conditions inside your nasal cavities.

事实证明，差异与鼻腔内的状况有关。

The conducting zone begins with the nose and nasal cavity.

导区始于鼻和鼻腔。

The nasal cavity is connected to four sinuses which are air-filled spaces inside the bones that surround the nose, called the paranasal sinuses.

鼻腔和四个鼻窦相连，鼻窦是位于鼻腔周围含气的骨质腔，又称鼻旁窦。

Your vocal tract is basically the entire mechanism that shapes sounds from your vocal cord to your nasal cavity.

声道本上是从声带到鼻腔塑造声音的整个机制。

Reindeer have 25% more blood vessels packed in their nasal cavities than we do, so they get rid of excess heat through their noses.

驯鹿的鼻腔中的血管比我们多 25%，所以它们会通过鼻子散发多余的热量。

Nasal Polyp are fleshy swellings that develop in the lining mucosa of the nose and paranasal sinuses, air-filled spaces, linked to the nasal cavity.

鼻息肉是在与鼻腔相连的鼻腔和鼻窦（充满空气的间隙）的内壁黏膜中增的肉质肿胀。

After passing through the nasal cavity, the air next reaches the pharynx (throat). There are three divisions of the pharynx.

通过鼻腔后，空气接着到达咽部（喉咙）。咽部分为三个部分。

Now, other studies which, as of yet, have not been peer-reviewed, have suggested that ACE2 in the nasal cavities drops again beyond the age of 60.

现在，还有其他一些尚未经过同行评议的研究表明，60岁以上人群的鼻腔中ACE2含量会再次下降。

So what this is the larynx pulling down out of the nasal cavity so that during the vocalisation the animal was vocalising out through its mouth.

图像显示喉部在鼻腔中的位置下降，因而在发声过程中动物可以通过口腔发出声音。

Dogs and other animals that rely mainly on smell tend to have elongated nasal cavities, which drain down and back with gravity, the correct way.

主要依靠嗅觉的狗和其他动物往往有细长的鼻腔，鼻腔在重力作用下向下和向后排出，这是正确的方式。

In other words, sometimes a person might have no allergic reaction on the skin test, but have a localized allergic reaction affecting the nasal cavity and eyes - that's low sensitivity.

换言之，一个在鼻子和眼睛局部存在着过敏性反应的患者在做皮肤点刺试验时可能出现假阴性的结果，这就是所谓的低敏感性。

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.

这些神经元从嗅觉板迁移下来，并嵌入筛板中，即将鼻腔与大脑隔开的骨板，从而形成嗅球。

During swallowing, the soft palate and uvula move upward to prevent food from entering the nasal cavity, the uvula also helps to guide the food into the pharynx.

在吞咽期间，软腭和悬雍垂向上移动以防食物进入鼻腔，悬雍垂也有助于将食物引入咽部。

Nose hairs at the entrance of the nasal cavity get coated with that mucus and are able to trap large particles of dust and pollen as well as bacteria, forming tiny clumps of boogers.

在鼻腔入口处的鼻毛表面覆盖着这种粘液，它们会附大的灰尘颗粒、花粉和细菌，形成鼻屎。