of these defects seem to be centered upon the five main areas around the heart. The atria‚ veins‚ ventricles‚ aorta and the four valves (tricuspid valve‚ pulmonary artery‚ mitral valve and aortic valve.) There are a number of ways that the defects can occur. This can be due to abnormal connections‚ leakage or narrowing in any of the four valves or
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BIO 169 Ch. 20 S.G. Name: __________________________ Date: _____________ 1. The anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm. A) Epicardium B) Abdominal cavity C) Pericardium D) Mediastinum E) Thoracic cavity 2. The membrane that surrounds and protects the heart is called the A) pericardium. B) pleura. C) myocardium. D) mediastinum. E) endocardium. 3. The apex of the heart is normally pointed
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heartbeat. * to understand the function of the valve is to ensure the blood flows in only one direction. The valve prevents the backflow of blood. Introduction I will introduce the lesson by * getting the students to identify a real stethoscope and asking them its function. * identifying where the valves are located on the heart diagram. * I will explain that we are carrying out two experiments to illustrate the functions of the valves in our heart and also an experiment to identify
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precisely cost each of Destin’s three products: valves‚ pumps‚ and flow controllers. BACKGROUND Destin Brass Products Company was founded by Guidry‚ Scott‚ and Steve Abbott‚ the current sales and marketing manager. After a conversation with the president of a large water purification equipment manufacturer‚ Abbott discovered an opportunity to produce high quality brass valves since the manufacturer was dissatisfied with the quality of brass valves currently available. Scott was known for his
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P1 – State three purposes of pneumatic supply system for a typical piston engine powered light aircraft‚ and give the functions of the piston engine air compressor and receiver‚ within the system. An aircraft powered by a piston engine usually tends to have a pneumatic air supply system. This allows the function of different systems on the aircraft that are essential to the flight of the aircraft. In a newer system the supply system will provide a vacuum of air for the gyro’s‚ so that the de icing
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nutrients‚ gases‚ hormones and wastes throughout the body. A. True B.False **Ans.A 2. *The Interventricular septum the heart prevents blood from flowing from the right to the left sides of the heart. A. True B.False **Ans.A 3. The valves are flaps that are located on each end of the two ventricles of the heart. A. They prevent blood from flowing backwards. B.They prevents blood from flowing forwards. Ans.A 4. The primary function of the circulatory system is to transport nutrients
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compressors‚ gas turbines. • Valves such as Globe Valve body and bonnet‚ Check Valve‚ Gate Valve. • Nozzles and chemical reactors. • Service temperatures up to about 570 °C. Gate Valve Body Globe Valve Body [pic] Advantages: • Easily Weldable with similar weld metal. • Has higher resistance to Graphitization • High Creep resistance. Limitations: • Applicable for valves operating in the Temperature range
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Anatomy of the Thorax MCQ and Spotter Hint: Cross section: Which artery (vein also indicated)? The correct answer is: Internal thoracic artery Click on the correct name for this structure: The correct answer is: Descending aorta Click on the correct name for this structure The correct answer is: Rib: head The correct answer is: Pulmonary artery The correct answer is: Sternum: xiphoid process The correct answer is: Posterior intercostal artery The correct answer is: Brachiocephalic artery
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heart chambers 9. actual “pumps” of the heart 10. drains blood into the right atrium Key: a. b. c. d. e. f. g. h. atria coronary arteries coronary sinus endocardium epicardium mediastinum myocardium ventricles 4. What is the function of the valves found in the heart? prevents backflow‚ maintains one way direction through heart 5. What is the role of the chordae tendineae? anchors cuspids to ventricle walls Pulmonary‚ Systemic‚ and Cardiac Circulations 6. A simple schematic of a
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FOUR STROKE PETROL ENGINE The four stroke petrol engine works in the following way:- Intake stroke In this stroke‚ fuel and air is allowed inside the cylinder by the downward movement of the piston which involves the opening of intake valve. Compression stroke Piston moves upward again in this stroke and the fuel and air mixture is compressed. Power stroke In this stroke power is generated when the spark plug ignites the fuel and piston moves down‚ this helps the engine to start initially
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