n.内皮，内种皮，珠被绒毡层

原形：endothelium复数：endothelia

The endothelium lines the inner surface of blood vessels, forming a barrier between the bloodstream and underlying tissues.
内皮细胞覆盖在血管内壁，形成血液与下面组织之间的屏障。
Endothelial dysfunction is a key factor in the development of many cardiovascular diseases.
内皮功能障碍是许多心血管疾病发展的重要因素。
The endothelium releases nitric oxide to help regulate blood flow and prevent clot formation.
内皮细胞释放一氧化氮以帮助调节血流并防止血栓形成。
Researchers study the expression of specific proteins on endothelial cells to understand their role in disease processes.
研究人员研究内皮细胞上特定蛋白质的表达，以了解它们在疾病过程中的作用。
Endothelial cells play a crucial role in immune response by modulating the passage of leukocytes through the blood vessel walls.
内皮细胞通过调节白细胞穿过血管壁，对免疫反应起着关键作用。
The endothelium is an essential component of the body's natural defense system against infection.
内皮细胞是身体抵御感染的天然防御系统的重要组成部分。
Inflammation can damage the endothelium, leading to increased permeability and potential for inflammation-related disorders.
发炎可能损伤内皮细胞，导致其通透性增加，进而引发炎症相关疾病。
Scientists are exploring ways to regenerate damaged endothelial cells as part of regenerative medicine approaches.
科学家正在探索修复受损内皮细胞的方法，作为再生医学的一部分。
Endothelial progenitor cells (EPCs) are believed to play a role in the repair and maintenance of the endothelium.
内皮祖细胞被认为在内皮细胞的修复和维护中发挥作用。
Atherosclerosis occurs when plaque builds up on the endothelium of arteries, narrowing blood flow and increasing the risk of heart attack or stroke.
动脉粥样硬化时，斑块会在动脉的内皮上堆积，减少血流量，增加心脏病发作或中风的风险。