Informational Site NetworkInformational Site Network
Privacy
 


Home


Medical Articles


Mother's Remedies


Household Tips


Medicine History


Forgotten Remedies


Search

Medical Articles

Polar Antagonism

When the conducting cords are of equal length, as commonly th...

Chest Protectors

These are often piled on the front of the body, while the far ...

Fever Scarlet Or Scarlatina

As a first precaution, when an epidemic of this exists, childr...

The Distinctive Diagnosis Between External And Internal Inguinal Herniae The Taxis The Seat Of Stricture And The Operation

A comparison of the relative position of these two varieties ...

Eczema

Skin eruptions, known under this name, have very various cause...

Diet For Middle Age And The Aged

In advancing years when less exercise is, as a rule, taken, a ...

Eyes Danger To Sight Of

Where inflammation has gone so far as to lead to suppuration, ...

Imaginary Vacations

ONCE a young woman who had very hard work to do day a...

Human Sympathy

A NURSE who had been only a few weeks in the hospital...

Feeding Over

It is well to remember that over-feeding is a relative term. T...

Nauheim Baths

At Nauheim, under the direction of Dr. Theodore Schott, baths...

Air Bath

This may with advantage to the health of the skin and body in ...

Ulcers Case Xxix

The peculiarity of the present case arose from neglect in eva...

Enemas Versus Colonics

People frequently wonder what is the difference between a col...

Penetrating Projectiles

Foreign bodies that have penetrated the chest wall and lodge...

Breath And The Heart

Stout people are usually more or less "scant of breath." Accum...

Nuts

How Nuts should be Used. Another form of fat is the meat of ...

Cephalagia Headache

1. "Nervous headache." Take the B D current--moderate force. ...

Menorrhagia Excessive Menstruation

If the menstrual flow is apt to terminate in hemorrhage, it i...

Of Inflammation Of The Knee

Servant women, I suspect from much kneeling in scouring stair...



Our Spirit-levels





Category: THE SPEECH ORGANS
Source: A Handbook Of Health

The Sixth Sense. Though we usually speak of having five
senses,--sight, smell, hearing, touch, and taste,--we really have also a
sixth--the sense of direction, or of balance. The machine of this
sense is comparatively simple, being made up of three tiny curved tubes,
which, from their shape, are called the semi-circular canals. These
are buried in the same bone of the skull as the internal ear, and
so close to it that they were at one time described as part of it.
These little canals are three in number, one for each of the
dimensions--length, breadth, and thickness,--so that whichever way the
head or body is moved,--backward and forward, up and down, or from side
to side,--the fluid with which they are filled will change its level in
one of them, just as the bead does in the carpenter's spirit-level
that you can find in any tool shop. The delicate nerve twigs that run
out into the fluid in these tiny canals are gathered together into a
bundle, or nerve-cable, which runs back to the part of the brain known
as the cerebellum or hind-brain, which has most to do with controlling
the balance and movements of our bodies.

It is the disturbance set up in these spirit-level canals by the
pitching and rolling of a ship, which makes us seasick. Neither the
stomach, nor anything that we may have eaten, has anything to do with
it. In the same way we sometimes become sick and dizzy from swinging too
long or too high, or from riding on the cars.





Next: The Speech Organs

Previous: The Ear



Add to Informational Site Network
Report
Privacy
ADD TO EBOOK


Viewed 1681