Cardiovascular system Main functions of the cardiovascular system The cardiovascular system transports nutrients and oxygen to all areas of the body. When the blood is travelling back to the heart, it flows through the veins. Whereas, after the blood has picked up oxygen from the lungs, it then flows away from the heart through the arteries. The cardiovascular system consists of the heart and blood vessels which run through the entire body. The right side of the heart contains deoxygenated
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Tissues, Cells and Organs The human body consists of many millions of cells. The cell is the basic structural unit of the body. A typical body cell has the following features; A cell membrane – this acts as a boundary for the cell contents. It also acts as a barrier, allowing certain substances into the cell, while keeping other substances out. The cell membrane is said to be ‘selectively permeable’. A nucleus – this determines what type of cell it will be, e.g. liver cell, nerve cell, skin
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continue to happen, but it makes you wonder how can we look exactly like a relative we have never seen or just the spitting image of our parents. In my paper, I will compare and contrast the influence of heredity and hormones on human behavior, by discussing our endocrine system, identifying of hormones and the glands responsible for secreting them, and genetics. Heredity and Hormones Heredity is the genetic transmission of characteristics from parent to offspring. Also
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The Human Brain: How does the brain work? The brain is the center of the human nervous system. The average size of an adult brain is 5.5 inches in width, 3.6 inches in height, and 6.5 in inches length. The human brain is composed of 78% water, 12% lipids, and the other 10% consists of protein, carbohydrates, insoluble salts, and soluble organics. The human brain performs a number of tasks of coordination, control, and regulation. • The brain controls the body temperature, heart
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researches are the testing done on non-human animals for determine the safety and the wellness for the patient before using the medicines and cosmetics. There are many types of animals used in the researches like vertebrate animals such as (mammals, birds, fish, rabbits, cats, dogs, and mice). As animal experiments are done all over the world, scientists have their arguments to
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Constitution of the Russian Federation { Adopted by referendum on: 12 Dec 1993 } [Preamble] We, the multinational people of the Russian Federation, united by a common destiny on our land, asserting human rights and liberties, civil peace and accord, preserving the historic unity of the state, proceeding from the commonly recognized principles of equality and self-determination of the peoples, honoring the memory of our ancestors, who have passed on to us love of and respect for our homeland and
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IB Biology Topic 6 Human Health and Physiology Introduction – The human body is composed of cells organize into tissues, tissues organized into organs and organs organized into an organ system. This chapter will cover some of the major organ systems of the boy and how those organ systems interact with each other = physiology. 6.1 Digestion Why do we digest food? – Here is the series of the events in order: ~Ingestion: You eat the food. ~Digestion: A series of chemical
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studying the human body. Discuss homeostatic processes in each of the organ systems we covered this semester. Be sure to include discussion of negative feedback, set points, receptors and effectors. (7 points each) 2. Homeostasis- The tendency of a living body to maintain relatively stable internal conditions in spite of greater changes in its external environment. (Saladin, 2015) a. Integumentary System – Homeostasis is critical for our body function, in order to stay in homeostasis the body goes through
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or colonization of the body by a pathogenic microorganism * Disease- abnormal state of health as the result of an infection * If Pseudo aeruginosa infects the eye it can cause a disease termed Pseudomonas keratitis. The etiologic agent (cause) of this disease is: Microbial pathogenesis- the characteristics/traits the microbe has that leads to the disease. II. NORMAL MICROBIOTA * 1 x 10^13 human cells in our body * 1x10^14 bacterial cells on/in our body (permanent residence that
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Body & Mind. Philosopher and Psychologist have developed several theories concerning the body & mind relationship. It had been thousands of years, in the research of body and mind. The discussions extensity of consciousness, and the mind. Consciousness and the mind have relation with the physical body, and the physical function independence, through the system of central nerves system. The clumsiness of mind panorama, at one time, the Scientists and philosophers, believed that the mind is a product
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