The Heart Essay Research Paper The HeartIntroductionYou
Only $13.90 / page
The Heart Essay, Research Paper
You need your bosom for all your organic structure needs. It pumps about 2000
gallons of blood a twenty-four hours. It takes about 20 seconds for blood to make every
cell in the organic structure. An arteria carries blood out from the bosom. A vena carries
blood back to the bosom. An mean grownup bosom weighs about 10-13 ounces ( 300
to 350 gms ) . The rate which the bosom pumps varies depending on what your
making. When at rest the bosom pumps more easy. When you run the bosom rate
additions to supply musculuss and other tissues with extra O they need.
The typical bosom rate is 72 beats per minute. Each round gives out 2-3 ounces
of blood pumped into the arterial system. At this bosom rate it beats about
104,000 times a twenty-four hours. The Superior and Inferior are the biggest venas in the
organic structure. The Superior is truly the biggest. These venas have a batch of C
dioxide and have oxygen-poor blood. The aorta is the biggest arteria in the
whole organic structure. Which will be covered in the study. The pneumonic vena takes the
blood out of the bosom and takes it to the lungs.
Today we will speak about many different parts of the bosom: The Three
Layers of Muscle, Atriums, Ventricles, Systole and Diastole, Treatments for the
Heart, Valves, and many Diseases.
The Three Layers of Muscle
The bosom has three beds of a muscular wall. A thin bed of tissue,
the pericardium covers the exterior, and another bed, the endocardium, lines
the interior. The myocardium is the in-between bed and is the biggest of all.
Myocardial Infarction is a disease subsequently read about in this study. The
pericardium is a hempen pouch which is really smooth liner. In the infinite infinite
between the pericardium and visceral pericardium is a little sum of fluid. This fluid
makes the motion of the bosom muscles smooth. Myocardium is the bosom musculus
The right atrium is a low force per unit area pump that moves blood into the right
ventricle through the tricuspid valve. The atria are the two upper Chamberss of
the bosom. The right atrium receives blood from the venas which is low in
O and high in C dioxide ; this blood is so transferred to the right
lower chamber, or right ventricle, and is pumped into the lungs.
The ventricle is a muscular chamber that pumps blood out of the bosom
and into the circulatory system.
The right ventricle has a thicker and stronger muscular wall than the
right atrium. The right ventricle pumps the oxygen-poor blood through the
pneumonic valve into the lungs where blood gives up C dioxide it has
carried from tissues. At the same clip blood absorbs O. From the lungs
pumping action moves blood to a having chamber on the other side of the
bosom. The left atrium, gently pumps the blood to the left ventricle through
the mitral valve.
The left ventricle gives a powerful pumping action to direct the O
enriched in blood into the aorta. The aorta is the chief arteria which
subdivides and delivers the blood to the organic structure & # 8217 ; s tissues including encephalon, variety meats,
Systole and Diastole
Systole is the contraction of the ventricles of the bosom which forces
blood out. Diastole is the relaxation of ventricles to let blood to come in.
Treatments for the Heart
Angioplasty is a technique used to clear arterias that have become
blocked with fatty sedimentations. Angiography is used to x-ray the blood vass.
In the bosom there are two valves that prevent backflow of blood from
the ventricles into the atria. On the right side of the bosom is the tricuspid
valve, composed of three flaps of tissue ; on the left is the two-piece mitral
Scope of minor to serious inborn upsets are really apparent at or
shortly after birth.
Ventricular Septal Defect
Ventricular Septal Defect is most common for bosom deformity. An
infant born with a defect has an gap between the lower Chamberss ( ventricles )
of its bosom so there is an increased blood flow from the left side to the
right side because the left side has more force per unit area than right side. The lungs
at this province are under really high in force per unit area. Treatment for this disease
depends on it size of defect. About 30 % -50 % of little defects near
spontaneously during the first twelvemonth of life.
Artrial Septal Defect
Atrial Septal defect is a gap which is high in the bosom between the
upper Chamberss ( atria ) . This disease is more common in female babies than in
male babies, and it frequently occurs with kids who ha
ve Down syndrome.
Disorders of Heart Rate and Rhythm
The control mechanism for bosom rate involves electrical urges. One
of the four Chamberss, right atrium, contains group cells called fistula node.
The fistula node Acts of the Apostless as a pacesetter, which produces electrical urges that
signal the musculus of the bosom to spread out and to contract in the pumping rhythm.
The bosom rate of a human can acquire up to 200 beats a minute if you exert
yourself. If something goes incorrect with the fistula node and normal tempo of
bosom is disturbed or bothered, one of a figure of rhythmic upsets can
go on. Too rapid or fast of a pulse is called tachycardia, and excessively slow of
a pulse is called bradycardia. The bosom can besides be affected by baccy
or usage of other drugs.
Here are some marks of this disease: None, skipped pulses, light-
headedness, thorax uncomfortableness, and shortness of breath. If the beat of bosom
round is disturbed job is arrhythmia. You possibly unaware of the job.
Heart mutters can be heard by a doctor as a soft hushing sound which
follow the normal sounds of bosom action. Heart murmurs can state you if that
blood is leaking out through a valve and can signal a serious bosom job.
Heart mutters can sometimes repair themselves.
Myocardial infarction is a disease of myocardium musculus in the bosom.
Heart musculus and it & # 8217 ; s liners can acquire a disease for case myocardial
infarction. You might non hold done anything incorrect even though, but it still
could go on. Myocardium gets blood from the coronary arteria. When non plenty
blood reaches the this musculus it is called myocardial infarction. It is
normally rare, but it can damage the bosom musculus really severely.
Here are some marks for this disease: short times of fast pulses,
shortness of breath, failing, thorax hurting, fainting, and unstable keeping. Fluid
keeping is besides known as redema. Redema means swelling of organic structure tissues due
to excessive fluid. When the musculus of the bosom is damaged or faulty it
could take to a disease known as myocardiopathy. This could go on by bacteriums
or expansion of the wall.
Diseases and Disorders for Heart Valves
Each valve consists of 2 or 3 thin creases of tissues. When closed valve
prevents blood from fluxing to the following chamber or from returning from the
old one. When a valve gap is narrowed and flow through is limited,
the status is stenosis. Each valve may be capable to stricture or
obstructor. In some instances a valve will lose its form or droop ( prolapsus ) or
fail to shut which causes a back flow of blood ( regurgitation ) could besides be
caused by infection or inborn jobs.
Tachycardia occurs usually during and after exercising or during emphasis
and represents no danger to healthy persons. In some instances, nevertheless,
tachycardia occurs without evident cause.The bosom can crush every bit many as 240
times per minute in tachycardia. Tachycardia can be ended by lying down.
Vascular System and Diseases of It
The vascular system consists of blood vass in the organic structure. The vass
become smaller as they extend further from the bosom. The aorta delivers its
flow to big arterias into smaller vass. Arterioles supply bantam
capillaries which nourish tissues. Oxygen is traveling from the capillaries to the
tissues, and C dioxide from tissues taken up into the capillaries.
Arteries have to be strong every bit good as flexible because of the force per unit area of the
blood being pumped through the venous system. Veins get bigger when they get
closer to the bosom.
Disorders of Blood Vessels
A disease or a upset for the blood vass can be fatal.
Coronary Artery Disease
The coronary arterias supply and keep the myocardium. Coronary
artery disease can do a bosom onslaught or high blood pressure when blood vass get
little or filled up with cholesterin, cicatrix tissue, or Ca. Other jobs
can go on besides. For case upsets for the bosom valves or for the bosom
musculus and pericardium.
The bosom is something you need every twenty-four hours you can & # 8217 ; t live with out it.
Exercise, eat a balanced diet, and ever have medical examinations. People don & # 8217 ; t believe a
medical examination will truly make anything, but believe it because it will. You might non
cognize you have something incorrect with your bosom or something else in your organic structure and
so you might acquire sick. So, Don & # 8217 ; t eat junky nutrients excessively frequently. Keep your bosom
safe and healthy every bit long as you can. Today I have talked about the bosom and
many other things every bit good such as the diseases of the bosom, the vascular system,