I. ANATOMY AND PHYSIOLOGY OF THE HEART I. LOCATION OF THE HEART The heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist‚ and its weight is about 250-300 g. Its center is located about 1.5 cm to the left of the midsagittal plane. Located above the heart are the great vessels: the superior and inferior vena cava‚ the pulmonary artery and vein‚ as well as the aorta. The aortic arch lies
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What genetic mutations produce the greatest risk of skin cancer? Cancer begins when one or more genes in a cell mutate. This either creates an abnormal protein or no protein at all‚ which causes mutated cells to multiply uncontrollably. The Most common gene to carry skin cancer would be the MC1R (melanocortin-1 receptor). Increasing evidence is showing that the greater number of variations in this gene‚ the greater the risk for melanoma. It also carries a more moderate risk that the CDKN2A mutation
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Lab Title: Microscopy Objective: To learn how to use and care for a microscope and to know the parts of a compound microscope and to efficiently use the microscope to focus on specimen. Introduction A microscope is an optical instrument used for viewing very small objects‚ typically magnified several hundred times. It consist of different lenses such as: Scanning = 4X‚ Low power = 10X‚ High power = 40 or 43X‚ Oil Immersion = 100X. A microscope is an instrument
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Respiratory System Study guide: 1. What percent of air is oxygen? 21% of air is made of oxygen. 2. What is the entire process of gas exchange between atmosphere and body cells called? The entire process of gas exchange between atmosphere and body cells is called respiration. 3. What is the waste product of cells? The waste product of cells is carbon dioxide. 4. What organs are located in the upper respiratory tract? The upper respiratory tract is composed of the
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The uppermost strand in this structure is called the coding strand. The second strand that lies below the coding strand is called the template strand. In order for a RNA polymerase to go from the upper strand to the second strand it must go through the process called transcription. First‚ the RNA polymerase must attach on to one of the genes on the coding strand on DNA. Once the RNA polymerase attaches‚ it must then begin the process called initiation. This means that the RNA polymerase opens up
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ANATOMY AND PHYSIOLOGY I LIST OF REFERENCES • MAIN REFERENCES – Shier‚ D.‚ Butler‚ J.‚ & Lewis‚ R. (2010). Hole’s Human Anatomy & Physiology. (12th ed.). New York: McGraw Hill. – Tortora‚ G.J.‚ & Derrickson‚ B.H. (2009). Principles of Anatomy and Physiology. Volume 1. (12th ed.). England: John Wiley & Sons 5 LIST OF REFERENCES • ADDITIONAL REFERENCES – Marieb‚ E.N. (2010). Human Anatomy & Physiology. (8th ed.). New York: Pearson Benjamin Cummings. – Seeley‚ R.R.‚ Stephens‚ T
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crowning achievement of Greek sculpture. Its asymmetrical balance‚ this motion while at rest‚ and the resulting harmony of opposites is the essence of male beauty. The following will discuss the male sexual anatomy‚ physiology‚ and overall sexual health. In examining the male sexual body‚ the anatomy encompasses both the external and the internal sex organs. The external sex organs consist of the penis and the scrotum. The internal sex organs consist of the testes‚ genital ducts‚ and the fluid producing
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An Overview of Anatomy Laszlo Vass‚ Ed.D. Version 42-0001-00-01 Observations What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Exercise 1: Anatomical Position Question
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e‚ L. (2016). Human Eye Anatomy - Parts of the Eye Explained. [online] All About Vision.) Lens: The lens is positioned behind the cornea. It has a nearly spherical structure that enables the eye to focus on an object either moving closer to or farther away from you‚ the lens focuses the light rays bouncing of the objects and onto the retina. It’s used to diffract light rays. It can only be damaged by a disease called”cataract”. The cataract causes clouding. lateral rectus muscle: This is one of six
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Season 12 of ‘Grey’s Anatomy’ is about to wrap up as only two more episodes are left. But viewers can expect a lot in this short span of time and if you are a fan of Alex and Jo‚ you should brace for some bad news. If actress Ellen Pompeo’s (she plays Meredith) words are any indication‚ the couple is heading for a split. In her interview‚ she said that things are not good between them and Jo is pushing him away. She added that there is a big Alex and Jo situation happening that will shed light on
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