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Blood pressure is the blood flow when the heart is pumping (top number) and when the heart is resting (bottom number). The body is a closed system and requires enough blood pressure to pump the blood throughout the body. A typically healthy blood pressure would be 120mmHg/70mmHg. Atmospheric pressure is the weight of the atmosphere at a specific location and altitude. At sea level, atmospheric pressure is 760mmHg. So actually, atmospheric pressure is much greater than blood pressure. Most people never have to worry about atmospheric pressure affecting blood pressure. However, deep sea divers experience an increase in blood pressure while diving, and astronauts experience a decrease in blood pressure when in space.
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The blood pressure gradient from the aorta to the capillaries is greater than the blood pressure gradient from the venules to the right atrium?
True
Is blood pressure the pressure of blood in the arteries?
Yes, blood pressure is a measure of the pressure exerted on your arterial walls as the heart pumps blood throughout the body (systolic) over the pressure when your heart is relaxed (diastolic).
Do runners have high blood pressure?
No. In fact, their blood pressure is lower than what is considered normal. So is their pulse.
Why do arteries have to be bigger and thicker than veins?
Because the blood flowing through arteries is under a far higher amount of pressure than the blood in veins. Therefore, arteries need to be able to withstand that pressure. Arteries appear bigger in size from the outside because yes they do need to be thicker and more elastic than veins because of the amount of blood and pressure in them.... but actually the inside "tube" if you will is actually smaller than that of vein... meaning if you cut then both in half you would see a bigger opening in a vein. This is because the blood leaving the heart must go all over the body needing to be under a higher pressure than when coming back to they heart. The smaller inside of the artery makes it easier for the body to keep the blood under pressure and moving.
What is the atmospheric pressure at an altitude of 30000 feet?
At an altitude of 30,000 feet, the atmospheric pressure is significantly lower than at sea level, typically around 4.3 pounds per square inch (psi) or approximately 29.3 inches of mercury (inHg). This equates to about 0.14 times the standard atmospheric pressure at sea level, which is 1013.25 hPa. The decrease in pressure is due to the thinning of the atmosphere as altitude increases.
Is the solubility of oxygen in blood at 2 ATM less than the same as or greater than at atmospheric pressure?
The solubility of oxygen in blood at 2 ATM (double atmospheric pressure) is greater than at atmospheric pressure because gases are more soluble in liquids at higher pressures. This means that the blood can carry more oxygen when exposed to higher pressures, such as when diving.
What happens when pressure in the lung is greater than atmospheric pressure?
If the pressure in the lung is greater than atmospheric pressure, air will flow out of the lungs in order to equalize the pressure. This is called exhalation or breathing out.
When does inspiration occur?
when atmospheric pressure is greater than the pressure within the lungs, inspiration occur.
What happens when pressure greater than atmospheric pressure is applied to pure water or a solution?
When pressure greater than atmospheric pressure is applied to pure water or a solution, the boiling point of the water/solution will increase. This means that the liquid will need to reach a higher temperature before it boils. Conversely, if the pressure decreases below atmospheric pressure, the boiling point will decrease, requiring a lower temperature for boiling to occur.
How many more times is the atmospheric pressure in Jupiter's core greater than the atmospheric pressure at the earth's surface?
Earth's atmospheric pressure is measured as 1 bar. Jupiter's atmospheric pressure is 100 million bars. Therefore, it is 100 million times greater
What happens when a pressure greater than atmospheric pressure is applied on pure water?
It is compressed and occupies a smaller volume.
What is Neptune's atmospheric pressure compared to earth's atmospheric pressure?
Neptune's atmospheric pressure is about 10 times greater than Earth's atmospheric pressure. Neptune's strong gravitational pull compresses its atmosphere, leading to much higher pressure levels compared to Earth.
Area having greater than normal atmospheric pressure is what?
A high pressure zone. Site of clear skies and warm weather.
What term best describes a gas under greater than atmospheric pressure?
The term "compressed gas" best describes a gas under greater than atmospheric pressure. This typically refers to gases that have been compressed into a smaller volume using pressure vessels.
Is the pressure inside the balloon equal to the atmospheric pressure?
Think about this: if the pressure WERE equal, what would happen in the instant when you open the neck of the balloon and whatever pressure is on the inside meets the pressure that is on the outside (atmospheric pressure)? In your experience, what DOES happen?
What should be the freezing point of water if its boiling point is greater than a 100 degrees?
Water boils at a temperature greater than 100 oC if the pressure is higher than atmospheric pressure but this has no effect on melting point.
In an orbiting space station would the blood pressure in major arteries in the leg ever be greater than the blood pressure in major arteries in neck?
yes the blood pressure in major arteries in the leg is greater than the blood pressure in arteries in neck during orbiting in an orbiting space station.
