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Why does your blood rush from your head to your feet when you come to a stop in a descending elevator?
Wiki User
∙ 9y ago
Your brain needs a constant amount of blood pumped up to it in order for it to function properly. (If you have a poor blood circulation, you should consult your local doctor).
The blood pumped by the heart is sent to different parts of the body through blood vessels called Arteries. One of it's destinations is to your brain (carries oxygen, glucose etc to the cells). In order for the blood to be pumped up to your head the blood needs to be under pressure. When the blood is under pressure it pumps further, which is what is needed for the blood to be pumped up to your brain.
The blood does not need to be under pressure when it travels to your feet since it can work together with gravity to reach it. But when the heart wants to pump blood up to your brain, it has to work against gravity which is why pressure is needed.
Branchiocauras's have necks that can measure up to 5-8 meters long. The blood pumped by the heart needs to be under a tremendous amount of pressure so that enough blood reaches your brain.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThis is due to Newton's first law of motion - a moving object tends to continue to move ( inertia)...the blood continues to move even after the body has stopped!
this is because of newton's 1st law ie inertia
Anonymous
When riding on a descending elevator that stopped suddenly, the blood rushes from your head to your feet. *
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What makes blood return to your heart from your feet against the force of gravity?
The pumping force of the heart.
What happens to your weight if you are in an elevator traveling upward at a constant speed?
Your weight (the force you feel at the soles of your feet) in an elevator traveling at any constant speed in anydirection would be the same at any instant as it would be if you were in that elevator in the same place, stopped. For practical purposes, it would be the same as it would be when you're standing on the ground. Technically, weight changes with altitude, but for any existing building the difference between your weight at the lowest and highest points of the building will be so slight as to be undetectable. You'd probably lose more weight due to evaporation of moisture in perspiration and exhaled breath during the elevator ride than you would due to the slight reduction in gravity resulting from your moving a bit further from the surface of the Earth.In order for your perceived weight to change, there has to be an acceleration. Constant speed/velocity is not acceleration. You would feel a change in weight as the elevator slowed down or sped up, but you would feel your "normal" weight once the elevator reaches constant speed/velocity.
How fast does air come out of a standing fan?
Fans are usually rated in cubic feet per minute, so divide the volume per minute in cubic feet by the area of the fan in square feet, and the answer is the speed in feet per minute.
A skid loader bucket holds how much sand in cubic feet or pounds?
Depends on the skid. They come in a variety of sizes.
What recurring sound do people hear at the home of the manettes?
the echoes of the feet from outside, symbolizing the people who are soon to come into their lives.
What is the answer of an elevator travels 310 feet in 10 seconds. At that speed how far can this elevator travel in 12 seconds Explain your reasoning.?
At 31 fps, the elevator will travel 372 feet in 12 seconds.
It takes an elevator 75 seconds to go 500 feet How fast is the elevator going?
About 4.5 miles per hour.
What is the velocity of an elevator climbing 32 feet per second?
It's 32 feet per second upward.
How much did an elevator cost in the 1800s?
Today it would be $1500 for an elevator that would go 50 feet up. In 1800's it would cost $80.
When An elevator is 180 feet above the first floor and Each second it descends twelve feet what integer is the change in the height of the elevator each second?
Its height is changed by -12 ft/s
How do you not break an egg from a 25 feet building?
Put it in the elevator and send it to the first floor :)
What time would it take to hit the ground if an aircraft at 36000 feet was descending at a rate of 300 feet per minute?
36000/300= :120
What is the speed of an object descending at 6 feet per second?
The speed is 4.1 miles per hour.
If an elevator travels 20 feet per second then how long would it take to travel 396 feet?
396/20 = 19.8 seconds
The elevator takes 60 seconds to rise 500 feet what is the average speed in miles per hour?
The question could be defined as a Elevator moving at 500 feet per minute. So per hour that is 30,000 feet. (60 * 500) so now we just need to convert that to miles. There are 5,280 feet in a mile. 30.000/5,280= 5.681 Mph.
An elevator car moves at 12 feet per second how long will take to get from the second floor at a height of 15 feet to the eighth floor at a height of 105 feet?
7.5 seconds
What is the descending abdominal aorta?
The aorta is the large blood vessel that comes out of your heart and contains the blood that has been oxygenated in your lungs and is ready to go to the rest of your body. It is one big tube with smaller arteries coming off of it until it needs to split in two to reach the legs, at which point it becomes the two femoral arteries. The aorta is shaped a bit like a question mark. Get out a piece of paper and a pencil, and start by drawing a short (a couple of inches) vertical line in the middle of the page. Now from the top of that line, continue it in an arch curving up and to the right, then back toward the middle of the page, then down, like a question mark. The line that goes up at the beginning is the ascending aorta, the middle more horizontal part is the arch, and when it turns and comes back down, it is the descending aorta.
