If something slows an asteroid, it may fall towards the Sun, towards Mars, or towards Jupiter. As both Jupiter and Mars move past the asteroids in their orbits, they may be pulled slightly towards those huge bodies in their orbits. In fact, Phobos and Diemos, the two tiny moons of Mars, may be captured asteroids.
Resistance - is opposition to flow and is a measure of the amount of friction blood encounters as it passes through the vessels. Blood flow (F) is directly proportional to the difference in blood pressure (Î´P) between two points in the circulation, that is, the blood pressure, or hydrostatic pressure, gradient. Thus, when Î´P increases, blood flow speeds up, and when Î´P decreases, blood flow declines.
Pulmonary and Systemic Circulation When compared with the systemic circulation, the pulmonary circulation is characterized by muchpulmonary circulation is characterized by much lower pressures and resistances, although the blood flow is the same. The reason that pulmonary blood flow can be equal to systemic blood flow is that pulmonaryequal to systemic blood flow is that pulmonary pressures and resistances are proportionately