what causes dizzines?
- Thread starter DarkManX
- Start date
<how come you get dizzy from spinning in a circle or something like that?? >
Are you ok? smokin Crack? Or just really bored?
Are you ok? smokin Crack? Or just really bored?
You asked for it:
The vestibular system is located in the inner ear and
contains the following structures: vestibular labyrinth,
semicircular canals, vestibule, utricle, and saccule. These
structures work in tandem with the vestibular areas of the
brain to help us maintain balance.
[Graphic Omitted]
The semicircular canals and vestibule of the inner ear
contain a fluid called endolymph that moves in response to
head movement.
The vestibular labyrinth is located behind the eardrum.
The labyrinth's most striking feature is a group of three
semicircular canals or tubes that arise from a common base. At
the base of the canals is a rounded chamber called the
vestibule. The three canals and the vestibule are hollow and
contain a fluid called endolymph which moves in response to
head movement.
Within the vestibule and the semicircular canals are
patches of special nerve cells called hair cells. Hair cells
are also found in two fluid-filled sacs, the utricle and
saccule, located within the vestibule These cells are aptly
named: rows of thin, flexible, hairlike fibers project from
them into the endolymph.
Also located in the inner ear are tiny calcium stones
called otoconia. When you move your head or stand up, the hair
cells are bent by the weight of the otoconia or movement of the
endolymph. The bending of the hair cells transmits an electrical
signal about head movement to the brain. This signal travels
from the inner ear to the brain along the eighth cranial
nerve--the nerve involved in balance and hearing. The brain
recognizes the signal as a particular movement of the head and
is able to use this information to help maintain balance.
[Graphic Omitted]
In the inner ear, rows of hairlike fibers project from tiny
patches of nerve cells called hair cells.
[Graphic Omitted]
These tiny calcium stones called otoconia are part of the
inner ear's balance system.
A thorough exam reveals the cause of most dizziness.
The senses are also important in determining balance.
Sensory input from the eyes as well as from the muscles and
joints is sent to the brain, alerting us that the path we are
following bends to the fight or that our head is tilted as we
bend to pick up a dime. The brain interprets this
information--along with cues from the vestibular system--and
adjusts the muscles so that balance is maintained.
Dizziness can occur when sensory information is distorted.
Some people feel dizzy at great heights, for instance, partly
because they cannot focus on nearby objects to stabilize
themselves. When one is on the ground, it is normal to sway
slightly while standing. A person maintains balance by
adjusting the body's position to something close by. But when
someone is standing high up, objects are too far away to use to
adjust balance. The result can be confusion, insecurity, and
dizziness, which is sometimes resolved by sitting down.
Some scientists believe that motion sickness, a malady
that affects sea, car; and even space travelers, occurs when
the brain receives conflicting sensory information about the
body's motion and position. For example, when someone reads
while riding in a car, the inner ear senses the movement of the
vehicle, but the eyes gaze steadily on the book that is not
moving. The resulting sensory conflict may lead to the typical
symptoms of motion sickness: dizziness, nausea, vomiting, and
sweating.
Another form of dizziness occurs when we turn around in a
circle quickly several times and then stop suddenly. Turning
moves the endolymph. The moving endolymph tells us we are still
rotating but our other senses say we've stopped. We feel dizzy.
Now go play in traffic.
The vestibular system is located in the inner ear and
contains the following structures: vestibular labyrinth,
semicircular canals, vestibule, utricle, and saccule. These
structures work in tandem with the vestibular areas of the
brain to help us maintain balance.
[Graphic Omitted]
The semicircular canals and vestibule of the inner ear
contain a fluid called endolymph that moves in response to
head movement.
The vestibular labyrinth is located behind the eardrum.
The labyrinth's most striking feature is a group of three
semicircular canals or tubes that arise from a common base. At
the base of the canals is a rounded chamber called the
vestibule. The three canals and the vestibule are hollow and
contain a fluid called endolymph which moves in response to
head movement.
Within the vestibule and the semicircular canals are
patches of special nerve cells called hair cells. Hair cells
are also found in two fluid-filled sacs, the utricle and
saccule, located within the vestibule These cells are aptly
named: rows of thin, flexible, hairlike fibers project from
them into the endolymph.
Also located in the inner ear are tiny calcium stones
called otoconia. When you move your head or stand up, the hair
cells are bent by the weight of the otoconia or movement of the
endolymph. The bending of the hair cells transmits an electrical
signal about head movement to the brain. This signal travels
from the inner ear to the brain along the eighth cranial
nerve--the nerve involved in balance and hearing. The brain
recognizes the signal as a particular movement of the head and
is able to use this information to help maintain balance.
[Graphic Omitted]
In the inner ear, rows of hairlike fibers project from tiny
patches of nerve cells called hair cells.
[Graphic Omitted]
These tiny calcium stones called otoconia are part of the
inner ear's balance system.
A thorough exam reveals the cause of most dizziness.
The senses are also important in determining balance.
Sensory input from the eyes as well as from the muscles and
joints is sent to the brain, alerting us that the path we are
following bends to the fight or that our head is tilted as we
bend to pick up a dime. The brain interprets this
information--along with cues from the vestibular system--and
adjusts the muscles so that balance is maintained.
Dizziness can occur when sensory information is distorted.
Some people feel dizzy at great heights, for instance, partly
because they cannot focus on nearby objects to stabilize
themselves. When one is on the ground, it is normal to sway
slightly while standing. A person maintains balance by
adjusting the body's position to something close by. But when
someone is standing high up, objects are too far away to use to
adjust balance. The result can be confusion, insecurity, and
dizziness, which is sometimes resolved by sitting down.
Some scientists believe that motion sickness, a malady
that affects sea, car; and even space travelers, occurs when
the brain receives conflicting sensory information about the
body's motion and position. For example, when someone reads
while riding in a car, the inner ear senses the movement of the
vehicle, but the eyes gaze steadily on the book that is not
moving. The resulting sensory conflict may lead to the typical
symptoms of motion sickness: dizziness, nausea, vomiting, and
sweating.
Another form of dizziness occurs when we turn around in a
circle quickly several times and then stop suddenly. Turning
moves the endolymph. The moving endolymph tells us we are still
rotating but our other senses say we've stopped. We feel dizzy.
Now go play in traffic.
Now how many people get motion sick from playing FPS game. When I first started it used to give me hell playing UT. But I'm used to it now.
Do I smell a post that belongs in OT?
If you really want to know read Taz4158's post, that's why you get dizzy.
If you really want to know read Taz4158's post, that's why you get dizzy.
I got it when playing "Desent" and I used to get it playing Half Life until I upgraded my computer. Fast motion, framey does it to me all the time.
Never happens to me, although my eyes refresh faster than normal. I think they refresh at about 80hz vs the normal 60hz.
You guys dont know what it is like to have chronic dizziness .... I have suffered with this since 1971 ... I have had all sorts of check ups done and all the specialists have given up... most likely it is a blood flow problem to the brain or just a plain old mental hangup. Because of my dizziness I am a computer chair potatoe ( a close relative of the couch potatoe ) I have now not been out of my house since the last 2 months due to this illness. Thank God for the Internet... I would have gone bananas without my time spent on the computer. You guys are the only friends I have.
Zenmervolt
Elite member
- Oct 22, 2000
- 24,514
- 44
- 91
Taz, great description, I think you hit everything possible. On a related note, anyone ever get nauseated playing Wolfenstein? Used to drive me crazy because I couldn't play it for more than 15 min max. On a 14 inch SM monitor at that.
lotust
Would you believe that this sickness is not uncommon... last week there was an article in our local newspaper about Kim Bassinger (the actress) having suffered from something very close to my problem. Even she was house stuck for months - but then she had all the best American doctors to help her get over this problem. It is quite a disabling sickness.
Would you believe that this sickness is not uncommon... last week there was an article in our local newspaper about Kim Bassinger (the actress) having suffered from something very close to my problem. Even she was house stuck for months - but then she had all the best American doctors to help her get over this problem. It is quite a disabling sickness.
TRENDING THREADS
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 25K
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes + WCL Discussion Threads
- Started by Tigerick
- Replies: 23K
-
Discussion Intel current and future Lakes & Rapids thread- Started by TheF34RChannel
- Replies: 23K
-
-
Facebook
Twitter