The Human Heart Essays

“Racism is man’s gravest threat to man- the maximum of hatred for a minimum of reason.” (Abraham J. Heschel, Jewish philosopher). Richard Beynon’s ‘The Shifting Heart’ was first published in 1960, and insightfully explores the impact of racism. It is based on the lives of the Bianchis, an Italian family living in the suburb of Collingwood, during the post World War II immigration boom. As a literary device, symbolism is the representation of a concept through underlying meanings of objects. Beynon portrays the message, ‘racism is a result of intolerance, not the specific races alone,’ through the use of symbolism as well as the various racial attitudes of characters. The set

Inside the heart the four chambers were clearly defined and hollow. The wall on the left side of the heart was much thicker and firmer than the wall on the right side. The wall on the right side was very thin. The valves appeared stringy, stretchy and very long.

The four valves of the heart are the tricuspid valve, the pulmonic valve, the mitral valve, and the aortic valve. The tricuspid valve is located between the right atrium and the right ventricle. It is responsible for allowing blood to flow from the atrium to the ventricle, preventing backflow of blood into the atrium. The pulmonic valve is located between the pulmonary arteries and the right ventricle and is responsible for allowing blood flow from the heart to the lungs. The mitral valve is found between the left atrium and the left ventricle, which allow blood to flow from the left atrium into the left ventricle preventing backflow of blood back into the left atrium. The aortic valve is found between the aorta and the left ventricle and allows blood to flow to the aorta and throughout the body.

A person that brutally killed four people, and unaware of the very fact that he is the one that murdered all of them. “Strawberry Spring” by Stephen King is a story that takes place at New Sharon college, at the start of strawberry spring, and the narrator tells the story about how there is a killer on the college campus, and in the end we find out he is the killer. “The Yellow Wallpaper” by Charlotte Perkins Gilman is a story from the perspective of a mentally ill woman, who is on a summer stay at a colonial mansion, and her husband makes her stay in a bedroom to treat her mental illness, however the result is compromised due to the wallpaper in the room making her feel more ill than ever before. Lastly “The Tell-Tale Heart” by Edgar

The cardiovascular system, however, would not be able to effectively complete these functions without help from what is sometimes referred to as the body’s hardest-working organ- the heart. Approximately the size of a fist, the heart is contains four chambers (the uppermost are called the atria and the lowermost are called the ventricles) and four valves. Additionally, the heart is surrounded by the pericardium, a structure that serves to protect the heart, keep the heart stabilized in the chest, and

Oxygen and nutrients the body requires for function are pumped around this complex network of blood vessels by the heart. At roughly the size of a human fist, the heart is a four-chambered muscle and performs two functions of circulation simultaneously and continuously. Systemic and pulmonary circulation. The heart is made up from three separate layers of cardiac tissue; the outer layer called the pericardium, which is a double sac-like outer covering with serous fluid inside to keep the middle layer, the myocardium from adhering to the outer layer. This middle layer of the heart is the heart muscle which is thicker on the left side, to aid with the pressure needed to sustain systemic circulation. The inner layer of the heart is the endocardium. It’s lining is smooth to help prevent the blood which circulates around the inside of the heart from clotting. The heart is the human body’s in-built pacemaker, and the electrical signals sent through the it cause the heart to contract and relax. This process is triggered by the autonomic nervous system and the contraction and relaxing cycle is

The heart is a very strong muscle that has one major job. The heart’s job is to pump blood throughout the entire body. The heart is made up of 4 chambers, and 4 valves. There is the right and left atrium, and a right and left ventricle. The atriums are the superior chambers, and the ventricles are inferior chambers. The left ventricle is the most important, because that is where the blood travels through to go to the aorta, and eventually the rest of the body (Taylor 2015).

The Tell Tale Heart' is a story about a man who killed an old man just

Heart Structure: The Capuchin heart is a four chambered, muscular organ consisting of 2 atria and 2 ventricles; the atria receive blood, while ventricles pump blood. The heart itself is composed of three layers being the epicardium (outer layer), the myocardium (middle layer), and the endocardium (inner layer).

The upper part of the heart is made up of the other two chambers of the heart, the right and left atria. The right and left atria receive the blood entering the heart. A wall called the interatrial septum divide the right and left atria, which are separated from the ventricles by the atrioventricular valves. The tricuspid valve separates the right atrium from the left ventricle, and the mitral valve separates the left atrium and left ventricle (KidsHealth 2016).The upper part of the heart is made up of the other two chambers of the heart, the right and left atria. The right and left atria receive the blood entering the heart. A wall called the interatrial septum divide the right and left atria, which are separated from the ventricles by the

The human heart is a four-chambered muscular organ. The heart is enclosed in a pericardial sac that is lined with the parietal layers of a serous membrane (Silverthorn, D.U, et al. 2016). There are three layers of tissue that form the heart wall: the inner layer is the endocardium, the middle layer is the myocardium, and the outer layer of the heart wall is the epicardium (Silverthorn, D.U, et al. 2016). The internal cavity of the heart is divided into four chambers: the

The pericardial sac is also known as the fibrous pericardium, which surrounds the heart. It consists of a dense network of collagen fibers, stabilizes the position of the heart and connected to the vessels within the mediastinum. The pericardium has subdivided into two portions of the visceral pericardium

     In Edgar Allan Poe’s short-story, “The Tell-Tale Heart,” the storyteller tries to convince the reader that he is not mad. At the very beginning of the story, he asks, "...why will you say I am mad?" When the storyteller tells his story, it's obvious why. He attempts to tell his story in a calm manner, but occasionally jumps into a frenzied rant. Poe's story demonstrates an inner conflict; the state of madness and emotional break-down that the subconscious can inflict upon one's self.

Mitral and tricuspid valves are referred to as atrioventricular valves, they are thin structures made up of connective tissue.

From the very first time the heart starts pounding until the time of death, it may beat more than 3.5 billion times. The center of the circulatory system is the heart. The average heart beats 100,000 times each day, pushing around 2,000 gallons of blood throughout your body. With a life span of 70-90, the heart will beat two to three billion times and circulate 50-65 million gallons of blood.