n.红细胞，红血球

Erythrocytes, or red blood cells, are the primary carriers of oxygen in the bloodstream.
Hemoglobin, found in erythrocytes, binds to oxygen and transports it throughout the body.
The biconcave shape of erythrocytes allows for efficient oxygen exchange in the tiny capillaries.
Anemia occurs when there is a deficiency of erythrocytes or hemoglobin, leading to fatigue and pale skin.
In a complete blood count (CBC), the number of erythrocytes is one of the key parameters measured.
Sickle cell anemia results from abnormal hemoglobin in erythrocytes, causing them to become rigid and block blood flow.
Erythrocyte sedimentation rate (ESR) is a test that measures how quickly red blood cells settle, indicating inflammation or disease.
Erythropoietin is a hormone that stimulates the production of erythrocytes in the kidneys in response to low oxygen levels.
Leukemia can affect the production or function of erythrocytes, leading to a decrease in red blood cells.
Donated erythrocytes are carefully screened before transfusions to ensure they are free from infections or diseases.
红细胞是血液中携带氧气的主要媒介。
红细胞中的血红蛋白与氧气结合，并将其输送到全身各处。
红细胞的双凹盘形结构有助于在微小毛细血管中高效地进行氧交换。
缺铁性贫血时，由于红细胞或血红蛋白不足，会出现疲劳和苍白皮肤等症状。
在全血计数（CBC）中，会测量红细胞的数量作为关键指标之一。
地中海贫血是由红细胞中异常血红蛋白引起的，使它们变得僵硬并阻塞血液流动。
红细胞沉降率（ESR）是一个测试，测量红细胞下沉的速度，指示炎症或疾病的存在。
肾脏在低氧条件下会产生促红细胞生成素，刺激红细胞的生成。
白血病可能影响红细胞的生产或功能，导致红细胞数量减少。
红细胞输血前需要仔细筛查，以确保无感染或疾病。