2007-02-13 00:24:42 · 9 answers · asked by noelleblum 2 in Health ➔ General Health Care ➔ Other - General Health Care
you throw out of kelter your equilibrium
2007-02-13 00:28:43 · answer #1 · answered by iroc 7 · 1⤊ 0⤋
Actually it has nothing to do with blood...
When you become dizzy, a part of your body that senses motion has sent the wrong signal to your brain. A system in your inner ear is the key to dizziness.
There are three semicircular canals for sensing motion.
They are at right angles to one another. They contain fluid called endolymph and hair-like sensory nerve cells. As your head moves in a given direction, the endolymph lags behind because it resists a change in motion (the principle of inertia). The lagging endolymph stimulates hair cells to send nerve signals to the brain. The brain interprets them to know which way the head has moved.
The body senses whether it is upright or lying down or whether it is moving or standing still through the vestibular system, which is in the upper portion of the inner ear.
When you spin, the endolymph slowly moves in the direction you are spinning. The movement of the endolymph signals the brain that the head is spinning. The brain quickly adapts to the signal because the endolymph begins to move at the same rate that you are spinning and no longer stimulates the hair cells. However, when you stop spinning, the endolymph continues to move and stimulate hair cells in the opposite direction. These hair cells send signals to the brain. The brain determines that the head is still spinning, even though you have stopped. This is where the dizzy feeling comes from. Eventually, the endolymph stops moving, no signals are sent to the brain, your brain determines that your motion has stopped, and you no longer feel dizzy.
2007-02-13 08:33:33 · answer #2 · answered by Anonymous · 0⤊ 0⤋
WOW - all good answers, they all sound like they know what they are talking about. I will guess, from the effects going in circles has on the brains blood flow.
2007-02-13 09:28:04 · answer #3 · answered by LindaAnn 4 · 0⤊ 0⤋
The information your eyes are taking in is coming in too fast for the brain to process it accurately.
I have two special needs children who don't get dizzy, and the PT said that it was because their brains refuse to process what is coming through when it comes too quickly.
2007-02-13 08:27:56 · answer #4 · answered by sacanda_trina 4 · 0⤊ 0⤋
The best answer to this one is that the liquid stuff in your inner ear keeps spinning around even when you stop. The liquid stuff convinces your brain and your eyes you are still spinning.
So your body may be facing south, but your eyes and brain say, no-no-no! We are going south-west-north-east still! TURN those feet around I say. I, your brain, command it! Your eyes say you will fall down if you don't do this!
So there you are, lurching around, trying to follow the Brain-and-Eye bosses, who were advised by the liquid stuff in your ears which is STILL spinning around in circles!
2007-02-13 08:36:18 · answer #5 · answered by Tina Goody-Two-Shoes 4 · 0⤊ 0⤋
Your vestibular system (an organ inside your ear) is responsible for balance, along with cerebellum (back of your brain).
The vestibular system helps with motion and stablility by sending signals to your eyes and muscles/joints.
When you spin...these organs (especially) your inner ear needs time to adjust back to normal position...that's why you feel as if you are still spinning.
2007-02-13 08:34:06 · answer #6 · answered by Md_gal 3 · 0⤊ 0⤋
Your equilibrium gets thrown off. Your brain gets confused as to where u are. It's still fun though. I'm going to spin in my office right now.
2007-02-13 08:28:38 · answer #7 · answered by major b 3 · 1⤊ 0⤋
Blood flowing to your head! Notice it doesn't happen when you go slow! There ain't an MD behind my name!
Willy
2007-02-13 08:27:39 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Whaddaya mean by "we"?
2007-02-13 08:32:05 · answer #9 · answered by Anonymous · 0⤊ 0⤋