, which are not usually leaked or excreted to the outside world, include:?cerebrospinal fluid surrounding the brain and the spinal cord?synovial fluid surrounding bone joints?intracellular fluid is the fluid inside cellsР脑脊液检测? (cerebrospinal fluid detection)Р一、脑脊液的生成Р脑脊液属细胞外液的一种,主要为脑室中的脉络丛所分泌,95%在侧脑室形成,其余大部分在第三、四脑室产生,此外有极少一部分来自脑与脊髓的血管周围间隙。? 成人 90-150ml? 儿童 10-60mlР脑脊液的功能Р1.提供浮力保护脑和脊髓免受外来机械性损伤。?2.调节颅内压:Dannce平衡?3.为脑、脊髓运送营养物质及排除代谢产物。?4.调节神经系统碱贮量,保持pH值在7.31~7.34之间。РPurpose of Cerebrospinal fluid analysisРThe purpose of a CSF analysis is to diagnose medical disorders that affect the central nervous system. Some of these conditions include: ?Viral and bacterial infections, such as meningitis and encephalitis ;?Tumors or cancers of the nervous system; ?Syphilis, a sexually transmitted disease ;