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❶Also you could suffer from exercise induced asthma or a condition known as bronchial hyper-responsiveness, which is obstruction of the airways after exercising.

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Free Essays Must Be Free! Human Heart Essay While the free essays can give you inspiration for writing, they cannot be used 'as is' because they will not meet your assignment's requirements. Located in the thorax, it lies left of the body's midline, above and in contact with the diaphragm. If you cannot find any suitable paper on our site, which happens very rarely, you can always order custom written paper which will be written from scratch by our professional writers and deliver to you on requested time.

The Gay Blood Ban: Is it Really Necessary? Your research paper is written by certified writers Your requirements and targets are always met You are able to control the progress of your writing assigment You get a chance to become an excellent student! Heart Disease Physiology of Exercise Dr. Larry Rogers Heart Disease You need your heart for all your body needs. It pumps about gallons of blood a day. It takes about 20 seconds for blood to reach every cell in the body Blood Flow The operation went fine, the camera is in my vein right now!

The doctor said to come back in one week so they can take it out. The narrow end of the roughly triangular heart is pointed to the left side and during working the contraction of the heart is most powerful at this end giving a feeling of the heart being on the left side. The space between the two layers is filled with fluid called pericardial fluid.

This fluid protects the heart from external pressure, push, shock and reduces friction during the heart beat and facilitates free heart contraction. The heart consists of four chambers.

The two thin walled auricles which are upper chambers right and left. Right and left auricles are separated from each other by an inter-auricular septum. Right auricle receives deoxygenated blood from the body parts by anterior and posterior vena cava.

The two thick walled lower chamber right and left are called ventricles. Right and left ventricles are separated by an inter-ventricular septum. The walls of left ventricle are much thicker as it supplies blood to large distance and up to the brain against gravity.

The left ventricle has chordae tendinae and papillary muscles which prevent tricuspid and bicuspid valves from being pushed into auricles at the time of ventricular contraction.

It brings deoxygenated blood from anterior body parts head, neck, chest and arms to the right auricle. It brings deoxygenated blood from posterior or lower body parts i. It arises from left ventricles and carries oxygenated blood to supply it to all body parts.

Abdominal aorta is the largest artery. There are two coronary arteries right and left, arising from the base of aorta and supply blood to heart muscles, blockage at these arteries result a myocardial infraction or heart attack. Right atrio-ventricular valve Tricuspid valve -Located at the opening between right auricle and right ventricle.

It is located at the junction of superior vena cava with right auricle it initiates and maintains the myocardial activity and its rhythmicity, called pace maker of heart. Located posteriorly on right side of the interatrial septum near coronary sinus, in the destruction of S. The function of pace maker can be taken up by the A.

Node along interventricular septum at the top. Impulses travel along bundle of HIS on to ventricles. Located at the terminal divisions of right and left branch of the bundle of HIS. The South African Surgeon Dr. In he received an M. The patient, 53 years old dentist Louis Washkansky, was given the heart of a 25 years old auto crash victim named Denise Darvall. The pumping action of heart Fig. The alternate contraction and relaxation dilation continues regularly.


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“The heart” The Heart is a very important organ in the body. It is what keeps your blood flowing and your organs going. It is a tireless muscle that pumps more than two thousand gallons of blood every day.

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ADVERTISEMENTS: The human heart is pinkish about the size of a fist and weighs approx. gms, the weight in females being about 25% lesser than the males. It is a hollow, highly muscular, cone-shaped structure located in the thoracic cavity above the diaphragm in between the two lungs. It is protected by rib cage.

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The heart is supplied with arterial blood by the right and left coronary arteries. On the contrary, its deoxygenated blood or the venous return is by the coronary sinus which empties into the right atrium. Functions: The function of the heart is to maintain a constant circulation of blood throughout the body. The heart beat sound is known as the 'lubb' and 'dupp', this is where the blood is pushing on the valves of the heart. The 'lubb comes first .

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The Human Heart The Human Heart is one of the most important organs in the entire human body. The heart is a muscular organ that acts like a pump to continuously send blood through the body. The heart beats approximately about seventy-two times per minute of our lives. Hypoplastic Left Heart Syndrome Essay - Hypoplastic left heart syndrome, or HLHS, is a rare congenital heart defect. This means that it is present at birth. It is the underdevelopment of the left side of the heart, which is the side that pumps oxygen-rich blood to the rest of the body.