Medical ArticlesFace Skin Of
To secure a healthy appearance of this is worth much trouble, ...
What we call, for want of a better name, "nerve force," or "ne...
Extraction Of Foreign Bodies From The Strictured Esophagus
Foreign bodies of relatively small size will lodge in a stri...
Inspection Of The Party Wall In Cases Of Suspected Laryngeal Malignancy
When taking a specimen the party wall should be inspected by...
These begin like warts, and in the earlier stages poulticing a...
The Care Of An Invalid
TO take really good care of one who is ill requires n...
Chloride Of Lime
About the same opinion may be given on _Chloride of Lime_. As...
Whether any drug should be used which acts directly on the he...
Importance Of Noting The Central Point
From the above observations, it will be plain that, when we w...
This disease, in addition to the symptoms of cutting, crampin...
Inducing A Child To Open Its Mouth (author's Method)
The wounding of the child's mouth, gums, and lips, in the of...
See Child-bearing. ...
Diets To Heal The Critically Ill
A critically ill person is someone who could expire at any mo...
Of Fungous Ulcer Of The Navel In Infants
It sometimes occurs that a little fungous sore exists upon th...
THEOPHRASTUS BOMBASTUS VON HOHENHEIM, commonly known as Parac...
The spatular end of the laryngoscope should now be tipped ba...
Amenorrhea Suppressed Menstruation
Treat as for chlorosis. But if the case be recent--the effect...
Fever At Night
Frequently, in illness, a fever sets in as night approaches, a...
Action Of The Pack And Bath Rationale
The action of the wet-sheet pack is thus easily accounted for...
Lues Of The Tracheobronchial Tree
Compared to laryngeal involvement, syphilis of the tracheobr...
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.
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