|Sing. Plural 1st person If I had loved If we had loved 2nd person If you had loved If you had loved 3rd person If he had loved If they had loved ... Read more of PAST PERFECT TENSE at Speaking Writing.com|| Informational|
Medical ArticlesOxalic Acid
Neutralise by chalk or lime water, but not by soda or any alka...
Ulcers Case Xxvi
The following case occurred in the person of a lady with vari...
Consumption Prevention Of
This most insidious and deadly disease is caused by a tiny veg...
Diseases And Disturbances Of The Skin
Their Chief Causes. Skin troubles are of two main kinds accor...
Positive And Negative Effort
DID you ever have the grip? If you ever have you may ...
Scarlatina Anginosa Or Sore-throat Scarlet-fever
Wherever the _throat_ is affected, which is almost always the...
Clinical Interpretation Of Pulse Tracings
A moment may be spent on clinical interpretation of pulse tra...
Deformities Of The Urinary Bladder The Operations Of Sounding For Stone Of Catheterism And Of Puncturing The Bladder Above The Pubes
The urinary bladder presents two kinds of deformity--viz., co...
As mentioned above, bronchial aspiration is often necessary....
Some years back my 70 years old mother came from the family ...
The Anti-gastric Method
consisting in the free use of emetics or purgatives, has been...
are the following: Absence of internal inflammation; a bright...
Healing-spells In Ancient Times
Neither doth fansy only cause, but also as easily cure ...
This acid is found in persons of a gouty tendency, such tenden...
The Surgical Dissection Of The Bend Of The Elbow And The Forearm Showing The Relative Position Of The Arteries Veins And Nerves
The farther the surgical region happens to be removed from th...
Menorrhagia - Profuse Menses - Flowing
For this affection, _Ipecac_ and _Hamamelis_ are the specific...
Endocarditis A Secondary Affection
Mild endocarditis is rarely a primary affection, and is almos...
The Lookout Department
Why the Eyes, Ears, and Nose are Near the Mouth. If you had n...
Ulcers Case Xxv
The following case illustrates the superior efficacy of the l...
Dr Jerome Kidder's Electro-magnetic Machine
On opening the machine-box, as it comes from the manufacturer...
Category: THE SKIN
Source: A Handbook Of Health
How the Nails are Made. Another trade, which our wonderful skin has
literally at its fingers' ends, is that of making nails. Indeed, every
kind of scale, armor, fur, feather, and leather coating possessed by
bird, beast, or fish was made by, and out of, the skin. Nail-making,
however, is one of its simplest feats, as it is carried out merely by
turning a little patch, or area, of itself into a horn-like substance.
This, the skin of insects, of fishes, of crocodiles, etc., does all over
the surface of their bodies; but in animals and birds only a number of
little patches at the tips of the toes harden up in this way, to form
the claws or nails; and in birds, the beak; and in some animals, the
horns. So it is quite correct to call the substance of our nails
In some animals and birds, these little horny patches at the ends of the
toes grow out into long, curved hooks, or broad, digging chisels and
scoops; but on our own fingers, they simply make a little mould over the
finger-tip. If, however, they are protected from being broken off, they
will grow four or five inches long; in fact, they are carefully trained
to do this by some of the upper classes in China, merely for the purpose
of showing that they have never been obliged to degrade themselves, as
they foolishly regard it, by working with their hands.
You can easily prove that the nails do grow constantly from the root or
base, out toward the tip, by watching, some time when you have pounded
one of your nails, how the black or discolored patch in it will grow
steadily outward toward the tip, where it will be broken off and shed.
You cannot see the softest and youngest row, or layer, of the nail cells
at the base, because a fold of skin, the nail fold, has been doubled,
or folded, over them to protect them while they are young and soft. It
is not best to push this fold of skin back too much, as, by so doing,
you may uncover the young nail cells while they are soft and tender, and
expose them to injury. The reason why there is a little whitish crescent
at the base of the nail is that the cells of the nail do not grow hard
and horn-like and transparent until they have grown out a quarter of an
inch or so from under the fold, but at first look whitish, or opaque,
like the rest of the skin.
Health Shown by the Color of the Nails. Your nails and your lips are
not really any redder, or pinker, than the rest of your skin; but the
cells forming them are clear and transparent and allow the red blood to
show through. This is why we often look at the nails and lips to see
what the color of the blood is like, and how well or badly it is
circulating. If the blood is anemic, or thin, then both lips and nails
are pale and dull. If the blood is healthy and the circulation good,
then the nails are pink, and the lips clear red. If, on the other hand,
the circulation is bad, as in some forms of lung disease and heart
disease, so that the blood is loaded with carbonic acid until it is
blue and dark, then the lips may become purplish or dark blue, and the
finger nails nearly the same color.
Next: The Blood-mesh Of The Skin
Previous: The Glands In The Skin