منابع مشابه
The high-altitude brain.
The highest place on our planet, Mount Everest (8850 m), appears to be close to the limit of how high an acclimatized human can go, albeit slowly. In this paper, I will explore the possibility that what limits human performance at such extreme degrees of hypoxia is the availability of oxygen to the brain. Also, one of the known costs of such extreme exposure is residual mild impairment of perfo...
متن کاملStructural Modifications of the Brain in Acclimatization to High-Altitude
Adaptive changes in respiratory and cardiovascular responses at high altitude (HA) have been well clarified. However, the central mechanisms underlying HA acclimatization remain unclear. Using voxel-based morphometry (VBM) and diffusion tensor imaging (DTI) with fractional anisotropy (FA) calculation, we investigated 28 Han immigrant residents (17-22 yr) born and raised at HA of 2616-4200 m in ...
متن کاملCerebral Venous Sinus Thrombosis Masquerading as High Altitude Cerebral Edema at Extreme Altitude
Introduction: Extreme altitude travel has gained popularity globally for adventurous, scientific, and military endeavors. Cerebral venous sinus thrombosis (CVST) at extreme altitude is a rare, covert, and emergent condition requiring immediate intervention. Case Presentation: A case of CVST masqueraded as high altitude cerebral edema (HACE) at 6700 m/22000 ft i...
متن کاملThe heart at high altitude.
On August 8, 1786 Michel Gabriel Paccard, the village doctor in Chamonix, with his guide Jacques Balmat, made the first ascent of Mont Blanc, and reached a height at which scientific opinion of the day considered life to be insupportable. Since that date the ways in which the body adapts to high altitude have interested in turn the physiologist, the mountaineer, the aviator, and now the cardiol...
متن کاملThe lung at high altitude
The lung is the interface between the environment and the metabolic mechanisms of the body, and plays a pivotal role in exposure to high altitude. In fact, high altitude is a challenge for the human body due to the progressive reduction of barometric pressure and subsequent reduction of oxygen pressure, leading to a series of important physiologic responses that enable individuals to tolerate h...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2001
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.204.18.3129