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  2. Cerebral blood volume - Wikipedia

    en.wikipedia.org/wiki/Cerebral_blood_volume

    The cerebral blood volume value of gray matter is about 3.5 +/- 0.4 ml/100g, and the white matter is about 1.7 +/- 0.4 ml/100g. The gray matter is nearly twice that of white matter. [3] In both white and gray matter, cerebral blood volume decreases by about 0.50% per year with increasing age. [4]

  3. Syncope (medicine) - Wikipedia

    en.wikipedia.org/wiki/Syncope_(medicine)

    Decrease in blood flow to brain [1] Diagnostic method: Medical history, physical examination, electrocardiogram [1] Treatment: Based on underlying cause [2] Prognosis: Depends on underlying cause [2] Frequency ~5 per 1,000 per year [1]

  4. Blood volume - Wikipedia

    en.wikipedia.org/wiki/Blood_volume

    The blood volume is 70 ml/kg body weight in adult males, 65 ml/kg in adult females and 70-75 ml/kg in children (1 year old and over). [5] [6] Total Blood Volume has been measured manually by the use of carbon monoxide (CO) as a tracer for more than 100 years and was first proposed by French scientists Grehant and Quinquaud in 1882.

  5. Clinical death - Wikipedia

    en.wikipedia.org/wiki/Clinical_death

    The prognosis is improved if clinical death is caused by hypothermia rather than occurring prior to it; in 1999, 29-year-old Swedish woman Anna Bågenholm spent 80 minutes trapped in ice and survived with a near full recovery from a 13.7 °C core body temperature. It is said in emergency medicine that "nobody is dead until they are warm and dead."

  6. Cerebral circulation - Wikipedia

    en.wikipedia.org/wiki/Cerebral_circulation

    Cerebral blood flow (CBF) is the blood supply to the brain in a given period of time. [8] In an adult, CBF is typically 750 millilitres per minute or 15.8 ± 5.7% of the cardiac output. [9] This equates to an average perfusion of 50 to 54 millilitres of blood per 100 grams of brain tissue per minute. [10] [11] [12]

  7. Bleeding - Wikipedia

    en.wikipedia.org/wiki/Bleeding

    Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels. [1] Bleeding can occur internally , or externally either through a natural opening such as the mouth , nose , ear , urethra , vagina or anus , or through a puncture in the skin .

  8. 30 Unusual Facts No One Really Asked For, But Are ... - AOL

    www.aol.com/46-unusual-facts-no-one-060027758.html

    Image credits: 1stPeter3-15 #21. The first public game of basketball was played the same week and less than 100 miles away from the last American vampire hunt.

  9. Hemodynamics - Wikipedia

    en.wikipedia.org/wiki/Hemodynamics

    In a normal circulatory system, the volume of blood returning to the heart each minute is approximately equal to the volume that is pumped out each minute (the cardiac output). [12] Because of this, the velocity of blood flow across each level of the circulatory system is primarily determined by the total cross-sectional area of that level.