This website uses cookies to ensure you have the best experience. Learn more

The Heart And Blood Circulation Essay

704 words - 3 pages

The Heart and Blood Circulation
The heart is a four chambered muscular pump around the size of a fist.
It beats about 100,000 times a day pumping around 2,000 gallons of
blood through about 100,000 miles of organic tubing.

The heart is a big muscle with four valves connected together to make
a two-stage pump. The heart gets its energy by oxidizing blood sugars.
This released energy, contracts the heart’s many muscle cells, and the
four chambers squeeze blood out into the arteries.

The arteries are thick walled muscular tubes which carry blood away
from the heart. The heart has two sides - the left ventricle and the
right ventricle. The artery from the right ventricle pumps blood to
the lungs, this is called the pulmonary artery and it is the only
artery that carries deoxygenated blood. The artery from the left
ventricle pumps blood to the rest of the body and it is called the

Veins are thin walled tubes which carry blood back to the heart, they
have a large diameter and valves. The veins returning blood from the
body are called the venae cavae. The vein from the lungs is called the
pulmonary vein and is the only vein to carry oxygenated blood.

The venae cavae collects oxygen depleted blood from the body and
routes the blood to the right atrium in the heart. When the right
atrium squeezes, it pushes blood through the tricuspid valve into the
right ventricle. Like the other three heart valves this is a one way
valve (blood can only flow in one direction). When the right ventricle
contracts, it pushes blood through the pulmonary valve and on into the
lungs. Because it does not take much pressure to get blood to the
lungs and back, the right side is smaller than the left. The left side
has to work...

Find Another Essay On The Heart and Blood Circulation

The process of organ and blood donation

2519 words - 11 pages “To the world you may be one person but to one person you may be the world.” ( Why should people donate? People should donate organs and blood because one organ can save up to eight lives. That same donor can save or improve up to fifty people. More then 119,000 people are waiting for transplants each year, and that’s just in the U.S. alone. Eighteen people die daily because they are waiting for organs and or blood

The Process of Organ and Blood Donation

2624 words - 10 pages “To the world you may be one person, but to one person you may be the world.” (Anonymous) Why should people donate? People should donate organs and blood because one organ can save up to eight lives. That same donor can save or improve up to fifty people’s lives. (Unknown) More than 119,000 people are waiting for transplants each year, and that is just in the U.S. alone. (Unknown) Eighteen people die every day because they are waiting for

Blood Bonds, Antigone, and The Eumenides

1154 words - 5 pages Blood Bonds, Antigone, and The Eumenides Every human on this earth has a bond to another. These bonds, as well as their significance, differ between people. This paper will focus on the bonds of marriage and blood, and their role in the plays Antigone and The Eumenides. How do they relate to each other? Is one more important than the other? How does the divine and mortal world interpret these? Through a review of the two plays and a

Macbeth and the symbol of blood

809 words - 3 pages Macbeth EssayI am going to prove that in the play Macbeth, a symbol ofblood is portrayed often(and with different meanings), and thatit is a symbol that is developed until it is the dominating themeof the play towards the end of it.To begin with, I found the word 'blood', or different formsof it forty-two times (ironically, the word fear is usedforty-two times), with several other passages dealing with thesymbol. Perhaps the best way to show how

Harry Potter and the Half Blood Prince

1550 words - 6 pages her first five book where written J.K. Rowling started the sixth book in the Harry Potter series is called The Half Blood Prince. This book of the series was published in the UK, us and other English-speaking countries on the 16th of July 2005 and achieved record sales (Rowling). J.K Rowling’s sixth book in the series Harry Potter and The Half Blood Prince expertly uses imagery, characterization, and motifs. Imagery plays an enormous roll in

"Harry Potter and the Half Blood Prince"

530 words - 2 pages The much awaited book of 'Harry Potter and the Half Blood Prince' brought no disappointment to children and adults of the world alike. J.K Rowling set the world of magic alight in her first book of Harry Potter. A writer who can make magic appear on the pages of her book, she truly has inspired readers of all age groups that anything can be brought alive if written or said properly.The 6th Harry Potter book includes the same main characters

Heart and the Fist Reflection

1103 words - 4 pages Katie HalvorsenMolly BuntonGEP 10104 November 2014The Heart and the Fist ReflectionIn the book The Heart and the Fist, author, Eric Greitens takes you through his experiences as he travels the world. At a young age Greitens always dreams of making a difference, so he began to travel around the world to work in refugee camps and serve the sick and poor. He realized that he could do more to protect the poor and sick by joining the army, and so he

Chaucer, Canterbury Tales, Pardoners Tale ii: 463-572. Write a critical and rhetorical analysis of the passage. Giving regard to its work, function, audience, circulation etc

1329 words - 5 pages Middle English Popular LiteratureWrite a critical analysis of the passage you choose for discussion, giving due regard to what is going on in the passage, but paying particular attention to the means by which the poet makes his point. Please focus on the passage, but you may need to relate it to the rest of the text or to like texts. You should extend your analysis to considerations of the text's place and work - circulation, function, audience

It explains the dynamics of blood analysis and how blood patterns are interpreted

3193 words - 13 pages One of the most essential part of crime scene investigation are the part of a criminalist. He is a partner of an investigation process that finds bits and pieces that even some investigators don't see. Crime scene personnel can encounter blood evidence in many types of cases, including burglaries and other non-violent crimes, but it is most often encountered in crimes of violence such as homicide, assault, and sexual assault. Bloodstain patterns

Sierra Leone and the Blood Diamonds: Civil War and Children

626 words - 3 pages RUF performed violent and terrorist acts that scarred many. “The RUF captured civilians and forced them to work”(Analyzing the Causes) in their army to gain control over Sierra Leone. The savages went around killing and torturing numerous unarmed citizens. Diamonds were excavated by hundreds of sierra leone’s people who were lashed everyday to be kept digging. The brutalities were severe and war had then had a sobriquet, “Blood Diamonds”. No

The Tragedy of Macbeth and the word "Blood"

891 words - 4 pages William Shakespeare was the greatest playwright of his time. One of his most well-known plays is "The Tragedy of Macbeth". In The Tragedy of Macbeth, the word "blood" appears many times throughout the play. The word has drastic effects on the characters in the play, and it's meaning changes throughout the story. The meaning of "Blood" changes significantly as the story progresses according to the character of Macbeth, and it affects Macbeth and

Similar Essays

Circulation In Humans, The Purpose Of This Essay Is To Describe The Physical Anatomy Of The Heart, And The Way In Which Circulation Works

877 words - 4 pages Human circulation has three elements, which are the heart, the blood vessels, and the blood. All together, this is known as the cardiovascular system. Blood, which is composed of fluid plasma, with erythrocytes, leukocytes, and platelets which circulate within the blood, and account for 40% of it. Blood Plasma is a complex solution of water made with metabolites & wastes, salts & ions, and proteins. Metabolites and wastes can be glucose

Blood And Blood Product Safety And The Role Of Government

2642 words - 11 pages during the 1980's. "HIV/AIDS." National Hemophilia Foundation. Web. 03 Dec. 2013. Used to find how many hemophiliacs have been infected with HIV/AIDS. Holleran, Andrew. Chronicle of a Plague, Revisited: AIDS and Its Aftermath. New York: Da Capo, 2008. Print. "How Is Hemophilia Treated?" National Heart, Lung, and Blood Institute. National Institutes of Health. Web. 02 Dec. 2013. Used to know how hemophilia is treated. Hunter

Faith And The Heart Essay

1163 words - 5 pages Theology I. Introduction: The reflection paper that I will discuss touches on some topics of importance to me that have been outlined in the first four weeks of this Course. I would like to discuss two topics that have proven relevant to me which are Mind, Reason and Logic and most importantly Faith and the Heart. I would like to start off by stressing that I am in a continual daily process of improving my beliefs and striving for my faith

Effect Of Heart Rate, Blood Pressure And Breath Rate On Cardiovascular And Respiratory Systems

2122 words - 8 pages regulation to various stimuli (Na D et al, 2005). It is made up of the hearts and blood vessels. It is in charge of supplying oxygen and nutrients to the cells in the body. When the body is undergoing a phase of exercise, the cardiovascular system has to work more effective and faster to meet increased metabolic activity. There is always a decrease in heart rate, breath rate and blood pressure experienced by the cardiovascular system due to exercise