bloodstream

简明释义

英[ˈblʌdstriːm]美[ˈblʌdstriːm]

n. 体内循环的血液

复 数 b l o o d s t r e a m s

英英释义

单词用法

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例句

1.After digestion, glucose passes into the bloodstream, where it is used by cells for growth and energy.

在消化后，葡萄糖进入血液，在那里被细胞消化，以供细胞能量和成长。

2.It allows nicotine to diffuse slowly and steadily into the bloodstream.

它使尼古丁缓慢、稳步地扩散到血液当中。

3.Insulin accumulates in muscle tissue and enters the bloodstream, allowing it to circulate throughout the body.

胰岛素会在肌肉组织中累积并进入血液，使其在全身循环。

4.When muscle fibers are damaged, the cells can begin leaking potassium and phosphorous into the bloodstream.

当肌纤维损伤后，破裂细胞中的钾和磷泄漏入血液中。

5.Insulin accumulates in muscle tissue and enters the bloodstream, allowing it to circulate throughout the body.

胰岛素会在肌肉组织中累积并进入血液，使其在全身循环。

6.The estrogen is absorbed into your bloodstream without passing through your liver.

雌激素不用经过肝脏就能被血液吸收。

7."There is evidence that the dust can mobilise meningitis in the bloodstream," said Barrie.

巴里说：“有证据显示灰尘微粒可以使脑膜炎孢子在血液中活跃。”

8.Quick shots of liquor hit the bloodstream faster than slow sips of wine.

和慢慢啜饮葡萄酒相比，快速饮酒会使酒精更快进入血液。

9.The medication quickly entered the bloodstream.

药物迅速进入了血液循环。

10.Once in the bloodstream, the virus can spread rapidly.

一旦进入血液循环，病毒可以迅速传播。

11.He felt a surge of energy as the caffeine hit his bloodstream.

当咖啡因进入他的血液循环时，他感到一阵能量涌动。

12.Doctors monitor the levels of glucose in the bloodstream for diabetic patients.

医生监测糖尿病患者血液循环中的葡萄糖水平。

13.The toxin was found in her bloodstream during the examination.

在检查中发现她的血液循环中有毒素。

作文

The human body is a complex system, and at its core lies the circulatory system, responsible for transporting vital substances throughout the body. One of the most critical components of this system is the bloodstream, which serves as the highway for nutrients, oxygen, hormones, and waste products. Understanding the role of the bloodstream (血液循环) is essential for grasping how our bodies function and maintain homeostasis. When we consume food, our digestive system breaks it down into smaller molecules, which are then absorbed into the bloodstream. The bloodstream (血液循环) carries these nutrients to cells across the body, enabling them to produce energy and perform necessary functions. For instance, glucose, a simple sugar derived from carbohydrates, travels through the bloodstream (血液循环) to provide energy for muscle contractions during physical activities. Moreover, the bloodstream (血液循环) plays a crucial role in the transport of oxygen. When we inhale, oxygen enters our lungs and diffuses into the blood, where it binds to hemoglobin molecules in red blood cells. These oxygen-rich cells then travel through the bloodstream (血液循环) to various tissues, ensuring that every cell receives the oxygen it needs to sustain life. This process is vital for cellular respiration, which produces the energy necessary for all bodily functions. In addition to nutrients and oxygen, the bloodstream (血液循环) also transports hormones, which are chemical messengers that regulate numerous physiological processes. For example, when the body experiences stress, the adrenal glands release adrenaline into the bloodstream (血液循环). This hormone prepares the body for a 'fight or flight' response by increasing heart rate, redirecting blood flow to muscles, and elevating energy levels. Such rapid responses are essential for survival and demonstrate the importance of the bloodstream (血液循环) in maintaining homeostasis. Furthermore, the bloodstream (血液循环) is integral to the immune system. White blood cells, which protect the body against infections and diseases, travel through the bloodstream (血液循环) to reach sites of infection. When pathogens invade the body, the immune response is triggered, and white blood cells are dispatched via the bloodstream (血液循环) to combat these intruders. This dynamic process highlights the bloodstream (血液循环) as a vital conduit for immune defense. However, the bloodstream (血液循环) can also be affected by various health conditions. Diseases such as diabetes can lead to elevated glucose levels in the bloodstream (血液循环), resulting in complications over time. Similarly, high cholesterol can cause plaque buildup in the arteries, restricting blood flow and increasing the risk of cardiovascular diseases. Understanding these implications emphasizes the need for a healthy lifestyle to maintain a well-functioning bloodstream (血液循环). In conclusion, the bloodstream (血液循环) is an essential part of human physiology, responsible for transporting nutrients, oxygen, hormones, and immune cells throughout the body. Its role in sustaining life cannot be overstated, as it ensures that every cell receives what it needs to function properly. By understanding the significance of the bloodstream (血液循环) and its impact on our health, we can make informed choices to promote overall well-being and prevent disease.