의학 뇌혈관 해부학과 뇌혈과 손상시 임상양상

의학 뇌혈관 해부학과 뇌혈과 손상시 임상양상

[의학] 뇌혈관 해부학과 뇌혈과 손상시 임상양상.ppt

본문 Role of Blood Supply Nutrition to parenchyma (brain cells). Brain is completely dependent on oxygen supply - No O2 reserves. Irreversible damage in 4-6 minutes if no oxygen Brain requires 20% of O2 for 2% of body weight. Brain requires glucose for energy No ability to use fat Remove carbon dioxide and waste-products from cells Cerebral perfusion > 60 ml/100gr min-1 in Gray matter 40 < X < 60 in White matter 750mL blood pumped per minute and circulated blood returned for reoxygenation 키워드 뇌혈관, 해부학