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Kinesthetic and Vestibular Senses
Transcript of Kinesthetic and Vestibular Senses
Examples & Functions
You know that your arm swings when you walk.
Tells you which hand is closer to the telephone when it rings.
Keeps you from knocking over a cup of coffee as you reach for it.
People who have suffered from a stroke or brain damage have to look at their arms or legs to know what they are doing because they have lost their kinesthetic sense.
Walking through a parking lot & squeezing through closely parked cars to get to yours
When riding a bicycle, receptors in your arms and legs send information to the brain about the position and movement of your legs & arms.
When riding a horse you need to be aware of the position of your feet and hands so the horse knows to continue to walk or run and not to stop.
The sense that informs us about the positions and motion of parts of our bodies.
The sense of body position and movement of body parts relative to each other.
The vestibular senses (the sensations of body rotation and of gravitation and movement) arise in the inner ear; the sense organs are the hair cells that send out signals over the auditory nerve.
The sensation of body rotation arises in the three semicircular canals in the inner ear. Movement of fluid in the canals stimulates hair cells, which send messages to the brain about speed and direction of body rotation. Gravitation and movement sensations are produced by movement of two vestibular sacs in each ear that lie between the semicircular canal and the cochlea. Both sacs are filled with millions of tiny crystals that bend hair cells when moved. In turn, impulses giving a sense of position are sent to the brain. (Motion sickness originates from excessive stimulation of the vestibular organs.)
The sense of body orientation with respect to gravity. The vestibular sense is closely associated with the inner ear and is carried to the brain on a branch of the auditory sense.
Provides constant sensory feedback of the muscles in your body are doing during motion.
Knowing what types of body movemnet are needed and how to adjust your body in situations.
Is a processes where a stimulus is received, transduced, and conducted as impulses to be interpreted by the brain.
In short :
It helps you feel which way is up, and how your body is moving in space.
Your sense of balance. (Which is why when people get ear infections they may have dizzy spells.)
It lets you feel whether you are sitting, standing, kneeling, jumping, running, etc.
When moving your head (straight, leaning, nodding, ect.) vestibular sense is being used.
When standing on one leg with your arms in the air, the vestibular sense helps keep you balanced so you have a lesser chance of falling over.
As a child did you ever spin yourself in circles and then try to walk straight? You couldn’t walk straight because your body was receiving impaired vestibular information.
Knowing whether you are upside down or right side up.
Examples & Functions
Kinesthesis and the vestibular sense alert us to our movements and body position without relying on our vision. In kinesthesis, sensory information is fed back to the brain from sensory organs in the joints, tendons and muscles. The vestibular sense makes use of sensory organs located in the semicircular canals and elsewhere in the ears to monitor the body's motion and position in relation to gravity.
Co Ting, Sam