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Name and Surname : Dr Sirati Nir
Name and Surname : Dr Sirati Nir

... 2 .The term of dissolves or causes a thrombus to break up is … A. thrombocytopenia B. thrombocytosis C. thrombolytic D. Embolism 3. Consistently elevated blood pressure of unknown cause is known as …. A. pulmonary edema B. parietal pericardium C. electrocardiography D. primary idiopathic 4. Lack of ...
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Chapter 48 - The Respiratory System
Chapter 48 - The Respiratory System

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... organization (cells, tissues, organs, and systems) work together is to follow the path of water through a plant.  Most plants need a large supply of water, to make sugars in the process of photosynthesis.  If you examine the structure of a root system, you will see that its growing tips are covere ...
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... bodies. The system that transports air into and out of the body is called the respiratory system. The purpose of the respiratory system is the same in all animals. It takes in oxygen for the body so the cells can unlock the energy in food. It also eliminates carbon dioxide, a waste product, from the ...
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... • Which system moves the body and generates most of the body heat? • Muscular system • Which system provides a supportive and protective framework for soft tissue and makes blood cells? • Skeletal system ...
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... under high pressure, or your blood pressure. • A capillary is a tiny blood vessel that allows exchanges between body cells and blood. • A vein carries blood back to the heart. Valves in veins keep blood from flowing backward. ...
chapt01_lecture_anim
chapt01_lecture_anim

... Homeostasis is the relative constancy of the body’s internal environment External conditions may change dramatically Internal conditions stay within a narrow range Dynamic equilibrium – internal conditions are not absolutely constant Illness results if internal conditions change to any great degree ...
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Homeostasis



Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, an effector mechanism that can vary that condition, and a negative feedback connection between the two.
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