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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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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Wounded Knee Massacre The Wounded Knee Massacre came after a battle between the United States and the Sioux. The Sioux had won the battle and clearly the United States were not happy. The Wounded Knee Massacre started with soldiers from the United States that were sent to this tribe to arrest the leaders because the Indians had different beliefs. They started with a man named Sitting Bull who was killed in the process. The United States were sent back and a man named bigfoot was in charge now. A
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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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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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People undergo total knee replacement when arthritis or injury erodes the joint’s natural cushioning to the point where it’s hard to walk even short distances without severe pain. Knee replacements now cost the NHS more each year than total hip replacements. An ageing population and an increase in obesity-related conditions are placing an increasing strain on NHS resources‚ with the number of knee replacements performed rising by 15 per cent last year from 59‚391 to 68‚300. Doctors
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book on the human body‚ and the English anatomist William Harvey (1578-1657) discovered how blood circulates through the body. These are just a few of the many contributors who added to our understanding of the human body and how it functions. Anatomy is the study of the structure or morphology of the body and how the body parts are organized. | | | Physiology is the study of the functions of body parts‚ what they do and how they do it. These two areas of the organization of the body are
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1- Conjunctiva- the conjunctiva’s structure is a fine transparent mucous membrane and its main function is to cover and protect the surface of the eye. It also lubricates the eye as it moves in the socket. 2- Cornea- the corneas structure is a transparent front window through which light enters the eyeball. It is made up of 3 main structures which are the epithelium‚ stroma and endothelium. Its function is that it performs much of the initial focusing
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