This tissue contains millions of chemoreceptors, nerves that capture odor molecules.

这种组织包含了数百万化学感受，是能捕获气味分子的神经细胞。

They call on chemoreceptors in our taste buds and nasal passages to detect molecules in our food and the air around us.

它们利用我们味蕾和鼻腔通道中的化学感受来检测我们食物和周围空气中的分子。

Within minutes or even seconds of reaching altitudes of 1,500 meters, carotid chemoreceptors in your neck sense your blood's low oxygen pressure.

如果在几分钟甚至几秒钟内到达 1500 米以上的海拔，脖子里的颈动脉化学感受会察觉到血液氧气压力过低。

These chemoreceptors are located in our brains and some large arteries that deliver blood to the brain.

这些化学感受我们的大脑和一些向大脑输送血液的大动脉中。

The central chemoreceptors are located in the medulla oblongata, and they're sensitive to changes in carbon dioxide levels.

中枢化学感受延髓，对二氧化碳含量的变化敏感。

Thermoreceptors respond to changes in temperature. photoreceptors react to light, chemoreceptors pay attention to chemicals, and mechanoreceptors respond to pressure, touch, and vibration.

热感受对温度的变化做出反应。光感受对光做出反应，化学感受关注化学物质，机械感受对压力、触摸和振动做出反应。

The peripheral chemoreceptors are located in the aorta and carotid arteries, and they deliver blood to the brain.

外周化学感受主动脉和颈动脉，它们向大脑输送血液。

Therefore, we have what we call chemoreceptors, which serve to sense changes in carbon dioxide and oxygen levels in our body.

因此，我们有化学感受，用来感知我们体内二氧化碳和氧气水平的变化。

Just as the ear's mechanoreceptors or the tongue's chemoreceptors convert sounds and chemicals into action potentials, so too do your eyes' photoreceptors convert light energy into nerve impulses that the brain can understand.

像耳朵的机械感受或舌头的化学感受将声音和化学物质转化为动作电一样，眼睛的光感受将光能转化为大脑可以理解的神经脉冲。

Central chemoreceptors located in the brain sense changes in carbon dioxide, while peripheral chemoreceptors located in the arteries delivering blood to the brain sense changes in both carbon dioxide and oxygen.

大脑中的中央化学感受感知二氧化碳的变化，而动脉中的周围化学感受感知二氧化碳和氧气的变化，这些动脉将血液输送至大脑。