I am writing on the human heart. I will be explaining the functions and uses of the heart throughout this paper. The main focus will be on how important the heart is to our entire body’s running like a well-oiled machine and its absolute importance to our survival. The heart has four different chambers. Each side of the heart contains one ventricle and one atrium‚ meaning it has two ventricles and two atriums‚ one on each side. They are known as the right and left ventricles and the right
Premium Heart
THE HUMAN HEART The human heart is by far one of the most vital organs of the body. It has a mass that ranges from 250 grams to 350 grams. Its contraction and expansion results in 2000 gallons of blood being pumped through the body’s blood vessels per day. It’s located in the middle of the chest protected by the ribcage. Its building blocks are a unique type of muscle known as the myocardium‚ and it’s enclosed by a double-walled membranous sac known as the pericardium. The double-walled membrane
Premium Heart
The Rental Heart Kirsty Logan is an award-winning writer. She was born in 1984 and is currently living in Glasgow with her Girlfriend. The Rental Heart is a science-fiction short story‚ which takes place in the future. The short story is about a person‚ who‚ throughout his/her life‚ has to replace his/her heart every time he/she finds a new lover. The replaceable hearts are mechanical hearts‚ which apparently function like normal flesh-hearts even though the mechanical hearts literally shatter
Premium Fiction Short story Love
Per: 7th November 22‚ 2011 Heart in a Box "How long can a human heart sit in a cooler of ice—thirsty for vein-borne blood‚ detached from ox y gen and lungs—before it becomes useless to the transplant patient who desperately needs it?" (Ballingall) Studies have shown that for up to 4 hours a transplanted heart can stay strong and healthy in a cooler of ice‚ but past six hours is too long for the heart to be stable‚ and its impossible to predict whether the heart will reject the recipient or not
Premium Heart Blood 1986
HEART DISEASE NOTES Video was made outside of Boston in Framingham. Studies started in 1948. Heart disease is # 1 killer in U.S. It starts squeezing your heart‚ and you feel a sharp point. 1/2 the people in the U.S. die with it‚ and 80% die from it. More men have it and more women die from it. Every minute heart disease kills someone in the U.S. Half the deaths in the U.S. population die by heart disease. Get tightness in the throat. Cholesterol is most deadly. Smoking hardens the arteries. High
Premium Atherosclerosis Artery Myocardial infarction
1 PLEASE READ BEFORE Organizing the Preparation Outline & Using this Template I. Always start organizing your speech with Main Points – Don’t Start with the Introduction or at the beginning of the speech – START WITH THE BODY of the speech and the Main Points!! A. Look at the research and try to find a way to organize your main points (MPs) - (chronological‚ spatial‚ topical‚ problem-solution‚ cause-effect). B. You should have at least two and no more than five main points. C. Try to keep
Premium Coronary artery disease Heart
Joselyn Bodnar Heart lab dissection 3/2/15 The Human heart has many complicated processes. Dissecting a sheep’s heart can help to provide an active‚ firsthand learning experience that allows to illustrate what has been previously heard and read. The sheep heart and a human heart share the same function and purpose‚ which is to keep the body alive by continually circulating blood around the body. Like a human heart‚ a sheep’s heart contains two atria and two ventricles. These four chambers
Premium Heart Blood
1 The heart is a muscular organ found in all animals with a circulatory system. The heart pumps blood throughout the blood vessels by contractions. Cardiac means “related to the heart”‚ and comes from the Greek. The vertebrate heart is made up of cardiac muscle‚ it’s an involuntary striated muscle tissue found only in this organ‚ and connective tissue. The male’s heart weighs 9-11 ounces‚ and the female’s heart weighs about 11-12 ounces. A person’s blood pressure has major effects on their heart;
Premium Heart Blood Myocardial infarction
SURFACE VIEW OF HEART Position‚ Shape and Size of the Heart: The human heart is located between the lungs in the thoracic cavity (i.e. it is not situated on the left side of the chest). The heart is a hollow‚ fibro-muscular organ and is somewhat conical in shape. It is about the size of one’s fist‚ measures about 12 cm in length and 9 cm in breadth. Its weight is about 300 g in an adult. The heart is enclosed in pericardium (a double- layered membranous sac). It protects the heart from mechanical
Premium Heart
Heart 1. Blockage of which of the following arteries would lead to ischemia of the apex of the heart? a. Anterior interventricular (descending) b. Left circumflex c. Posterior interventricular (descending) d. Right marginal e. Right coronary 2. If the ductus arteriosus does not spontaneously close off soon after birth (to become the ligamentum arteriosum)‚ it may have to be surgically ligated. When clamping or ligating it‚ what important structure immediately behind it must be identified
Premium Heart