Iowa County democrat. [volume] (Mineral Point, Wis.) 1877-1938, 1914-03-26
the HU'iAN HEART
Work Of This Marvellous TWofoIt
Pumping Machine.
HAS A LANGUAGE OF ITS OWN,

SIooO IL els WNctNSf " is oNFcHA
or Weak and If Ailina Notes the
Place and Cause OF It's Troubles.
When the doctor puts his ear to Your
chest or applies the stcthoScopc, which
only conducts the sounds more clearly,
what does he hear? The sound oi
the normal heart is like the prouuncta-
ton OF the SylIah)cS Tub dup" close to
each other These SNllahlcS are heard
in quick succession. and then COMES
4 pause the diaStrlC or resting period
Of the great force pump. The SOUND
"luh' is that Ut the blood towing
out under muscular pressure, and the
dup" is the closing IL the aortc
valves, II this sound dup is net
heard il shows that the aortiC valves
are destroyed or not working.
Tho latest explanation Of this first
sound. hub" is that it is caused by
the muscular contraction OF the heart
and the impulse OF the heart against
the chest wall The first sound is
beard more clearly over the apex of
the heart. the point of the chest near
est to the vcntriclr The second sound
is best heard over the aortiC valves,
which lie beneath the left side of the
chest Just 10y the third rib
II YOU close door With great force
the slam is very loud, and Il the ten
sion in the aorta Is very high the
sound dup is louder than usual
This Is most important to the physi
clan. for he then knows that there is
high nrtcrial tension, due TO what Is
termed an aueurism,
II the sound "mh" Is weaker than
normal II would indicate weakness
of the heart muscle and this Is the case
in feVcrS In typhoid fever. for In
stance when this first sound is very
weak we know that the heart Is 50
weak rs to make the case alarming.
\ heart Is said to have u "murmur'
when the sharp dup" disappears and
the listening physician hears Il softcncd
noise called II "murmur," II You try
to say dup" with your lips open the
sound uttered will be like that the doe
tor hears in the diseased heart whose
valves do not close properly. The
sound produced is something like
duff" and If the mtral valve does not
work well the first syllable il softened
into huff" If both valves work poor
ly the sound is huff dun -luif dun,
but If both valves are very much out
of order the sound Is like that of II
! bellows. "oho-oho."
Most persons speak of the heart as
If 1t We're single organ, but actually
il Is two hearts joined together. the
right and the left heart, The rlgn
sends the blood through the lungs so
| that II may be aeratcd. or acted upon
10y the oxygen IN the Inhaled air. while
| the left heart sends the blood through
the body in order to nourish the It's
sues
Both OF these hearts receive the
blood from the large veins into the
aurlces. which by contracting send
| the blood on into the ventricles and
when these powerful muscles contract
| the right ventricIc pumps the blood
| into the pulmonary artery on the way
| TO the lungs and from the left ven
| trice into the nortn. which distributes
after having nourished the nerves and
muscles 1t returns through the veins
| 10 the heart there 10 be pumped into
| the lungs for publication by the oxy-
gen before again passing through the
system
The difference in the sounds of the
right and left ventricles Is traced 10
the difference in resistance Of the aortn
and the pulmonary artery, The pull
monary artery rcsists with only one
third the strength of the aorta, so tho
pumping force required Is less and the
noise Of the closing gntes Is that much
less
1t Is true. then. that when the phyS
elan listens to the beating Of pa
tents heart through his stethoscopr
the heart speaks 10 him IN unmistak
able language. When II plainly says
"lub-dup" he knows that all Is well
with this important organ. and he pats
the patient on the shoulder. saying
Nothing serious: you'lI be all right In
n day or two" When. however. the
heart says Tub. dun" he knows that
the aOrtic valve Is not working prop
erly and takes the proper steps to cor.
rect IT, When the heart says ''luff dup
he Is sure that the mitral valves are
out Of order. and he tries to reach
them
When the heart snys "luff-dun' he
draws solemn face. for both valves
are out Of order. and when IL save
"oho-Oho" he digs down into his bag
and goes to work Mt once, for all Is rad
ically wrong Detroit News Tribune