When we add sugar to tea or coffee we might not really reflect on how much sugar we scoop up. What is one teaspoon for you may actually be two ârealâ teaspoons, which would mean you are actually consuming more calories than you thought. A normal teaspoon of sugar vs a heaped teaspoon of sugar.
they are inversely proportional (increasing area decreases velocity) therefore in large vessels like the vena cava, blood has a low velocity blood also has a low velocity in the capillary beds, because of the increased cross-sectional area produced by many capillaries.
The cerebral blood flow is higher in children than in adults, typically exceeding 100 mL per 100 g per minute. However, contrary to popular thinking, the blood flow decreases only slightly with advancing age. The brain utilizes fully 25 percent of the body's total oxygen consumption.his level is reached in less than 10 s when cerebral blood flow is com pletely stopped. Low tissue oxygen levels in the brain (hypoxidosis) can be caused by de creased blood flow (ischemia) or with adequate blood flow accompanied by low levels of blood oxygen (hypoxemia).