American Lancaster gazette. [volume] (Lancaster, Ohio) 1855-1860, 1859-01-06

F0T TOO IA11lll0I uHE1EF1s
Circulation Of Ghs Bleed.

iul strength, vnriously estimated by pbysi-
ologisls. At from few pounds, 70 z ieW
thousand ponnda. Itisihe center Of lhe
circulation Of the blood. and Is The prin-
cipal sgenl 10 that function. Il bas
four cavities which viii Be sEgIsipsd;
viz. Two orioles apd two vsntriOIss. =
II is placed between the two lobes Of
the lungs, with its point obHquely down
wards and pointing 10 the space be-
tween the fifth and sixth ribs, in.the left
Side The arteries are elastic. tubes. con-
sis.ing Of three coas, or layers and pos
sess contractile power. The veins, are
similar to the arteries, in construction.
but are raIhet passive than active. They
possess eli along their course. small mi
ltfal Valvess pointing towards the heart,
which close, and prevent the blood from
flowing backwards, towards the extremi.
ties. The princib1l veins are superficial,
or between the skin and muscles; while
the aftsries, are deep seated. A wise a.
rangetiienl in bur FORMATION. because. a
wounded sfteiy. endangers life; while the
bleeding from cut vein. is easily arrested
ny compression. l will take occasion here,
to explain, that wounded artery may be
detected by the bright red color bf the
blood. and BY its always coming from the
@ound in Jets. or spirits; while the bleed>
ing from vein, flows 10 uniform stream
and Is Of deep red or dark color. Bleed
| ihg from wounded artery can be arrest.
led by binding q ligatufe tightly arolud
the limb. Ur. BY making1a 6tm pressure
oh the artery, always above the w6nnd. Of
betwSenthe wound and the heart. as the
blood always flows from the hesft out-
watds. thtough the arteries. Surgical aid
lie INDISPENSABLE ih the case ofwounded ar-
teries. But PROPER pleasure as above, tenn.
porarily arrests the bleeding. Until such aid
can be procured; andis important to be
understood, because, many lives that have
been lost, might have been saved, BY such
pressure. -
Wo will not discuss The Question in this
place. whether the arteries are passive, or
whether they assist by their contractile
Epower, in sending the blood to all parts Of
the body. The general plan Of the circh.
lation, is all that we deem it important to
explain; and all that il would cohoern the
general reader to understand. s
/ AS above limited al, the blood flows from
the heart outward through the arteries, to
every part Of the system and returns again
10 the heart through the yeinI. in the fol-
lowing manner. The right oricle of the
heart, receives the blood from the large
vein; the oricle contracts, aud passes it in
1 70 the right Yenlricle. The blood then is
4 very dark. (Venous blood. THIS ven,
:ltricle contracts in turn, and passes the
blood 'idto the lungs, through the pulmo-
i nary Artery; il is distributed through the
'llungs in The fine hair ike vessels called
!, Eoapilaries, in such way, as to allow the
n air taken into the lung in breathing, d to
! TACT upon it in the air cells Of the lungs, BY
|, (which il gives out its carbon, and takes
il, oxygen from the air. 1t is then chan.
, Iged into a bright red color, and takes the
name Of arterisl blood. and returns TO The
) heart through the pulmonary vein. The
(, lett oriole receives it and transmits il t.
the left ventTicle, this contracting, psssei
il to the main artery (arorla) (which. aftel
ksending off branches to the head aud up
per extrsmities, turns dowpwards, and af
/. ter being divided and sub-diuidad, sup
!, plies the body and lower extremii:ess
The contraction and expansion OF tn
: heart in circulating the blood, occurs from
'-P60 to'6O times tothe minute 10 adult per
j. sons, in children quicker. The bealin,
!. Of the arteries is simultaneous with th
action OF the heart, and is called the pulse
I The force and frequency Of the pulse, i
u very much influenced by disturbance Q
: the nervous system, and is one OF til
n means by which physicians judge disease
and heslth ....,s ,,'.'1'.''' -''s11
Il The arteries after innhmerable division &
nally terminate in the tissues and surfaces
! IN an exceedingly fine not; work OF vessels
! called capilaries; TOO small to be seen BY 'th
= unassistsd eye. They lose thsie artsri,
IS nature at scfne point, and become veinl
r which unite into larger and d1arger vessel
o tnA they approach tie heart, when the
form one large vein f0saa cdva) whic
: ternrinstss in the right ioricle ofthe hear
70 the point from which we started. Th
y precise length Of time which is require
le for the whole mass Of blood TO; pass throug
!. The heart, is not known, but does not el
!, coed few minutes. ,e3e issFs
The interruption of the free passage {
r afiOrisl blood 20 the brain for only fev
e seconds, is followed by the extinction
q the vital principle. Aud aconstant sur
n ply of okYgenated blood to all the tissue
ofthe body, is vital to their health, an
y development. The portal circulation, q
'r that system Of vessels which circulate
,e The blood thtough the Yiscera Of the .abod
n. men, as tie bowels, liver, kidneys &c.
separated from the general circulation. aD
eTnpties its own blood back into tie figl
"a orice Of the heart, by 8 veins called u
, portal veins. tstset fs
= The properties and uses, Of the bloot
= how Il supplies the system with nulridor
~ tbe glands with their appropriate seer
es tions &c; how it receives aud carries Q
d, from tbetiSdes, excrsnrentitsons matte
n no loRger Ct to remain in the organization
and other things pertaining to it, rnu
90 form the subject for another paper.
rt Ifssue Any part or structure Of u
'st body, as bone, skin, muscle, nerve &c,
8ygg rs TH eF L. II.
al re- fhs late High Sheriff Of AlsgHet
d county has given US The following;
a.. iI vnaa affiliated with Debililv nj fikhe u