Hypertension‚ Aortic Aneurysm‚ Heart Disease‚ Varicose Veins‚ and Chronic Venous Insufficiency‚ Angina‚ and Peripheral Vascular Disease are all problems that can proceed in the cardiovascular system. Arteriosclerosis is a circulatory disease that is caused by fat buildup‚ cholesterol‚ and or other substances in the artery wall. These things make the veins stiffen up and become narrow. Hypertension is an issue when a force of blood pushes against the artery walls over time. This can be caused by a high intake
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– the tough covering that protects the exterior of the artery. As they travel farther away from the heart‚ arteries branch out into arterioles‚ which are smaller and less flexible. Veins carry blood back to the heart. They are not as muscular as arteries‚ but they contain valves that prevent blood from flowing backwards. Veins have the same three layers that arteries have. However veins are thinner and less flexible. The two largest veins are the superior and inferior vena cavae. In this context
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brachiocephalic artery g s h l m e 10. left common carotid artery 11. left subclavian artery t i u j v w k 12. pulmonary trunk x c 13. right pulmonary artery p 14. left pulmonary artery o 15. ligamentum arteriosum t 20. left coronary artery f 16. right pulmonary veins s 21. circumflex artery q 17. left pulmonary veins w 22. anterior interventricular artery h 18. right coronary artery x 23. apex of heart i 19. anterior cardiac vein v 24. great cardiac vein 190 Copyright
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body. The human heart pumps blood through veins‚ arteries‚ and capillaries all the time in order to stay alive. A heart attack occurs when cells in the heart cannot receive enough oxygen because not enough blood is being circulated. The more time that passes without proper treatment in order to restore the flow of blood‚ the greater the risk a person has of damaging their heart and of dying. Atherosclerosis is the hardening and narrowing of the arteries and it is usually the cause of heart attacks
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contact with tissues • Returns to heart via open veins • No control 3 Circulation in vertebrates 4 Double circulation • Blood moves through heart 2x during a circuit – Lungs – Body – Low pressure from lungs‚ • Birds • Warm blooded creatures • High metabolic rate – Requires good oxygen supply → aerobic respiration • 5 Human cardiovascular system • Human cardiovascular system blood flows • Muscular heart → arteries → smaller aterioles → arterioles → capillaries
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8546d_fm_i-iv 6/26/02 3:51 PM Page 1 mac62 mac62:1253_GE: CAT DISSECTION A LABORATORY GUIDE 8546d_fm_i-iv 6/26/02 3:51 PM Page 2 mac62 mac62:1253_GE: 8546d_fm_i-iv 6/26/02 3:51 PM Page 3 mac62 mac62:1253_GE: CAT DISSECTION A LABORATORY GUIDE CONNIE ALLEN VALERIE HARPER Edison Community College John Wiley & Sons‚ Inc. 8546d_fm_i-iv 6/26/02 12:17 PM Page 4 mac62 mac62:1253_GE: Senior Editor Associate Editor Production Editor Senior Marketing
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SCALP Layers:- * (S) Skin:- * Contains hair follicles which makes it hairy. * Has numerous sebaceous glands. * (C) Superficial fascia * Connects skin to the epicranial aponeurosis. * Provides an easy passage for blood vessels. * This layer is fibrous and dense in the middle and thin at the periphery. * Swelling in this part is not profuse but very painful. * Injury to the head till this layer causes profuse bleeding which can be stopped by
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report on my findings. Before we get started on our journey‚ I would like for you to meet Ms. Dazzle my mini-submarine. Our route from here will be to enter the body by injection into the right femoral vein‚ which is located in the upper thigh and pelvic region of the body and runs close to the femoral artery (Tamburlin & Severin‚ 2011). Once inside the body‚ we are to continue on a path that can lead us to the infected area. During my journey I will be able to provide you with specific information that
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Organisation of the human body. Jade Roberts. Barbara. P1‚ P2 AND P3. Health and Social Care level 3. 1 In this booklet I will be explaining what the main components and functions are of the cells. I will also be outlining the structure of the main tissues in the body and the gross structure of all the body systems. 2 The components and functions of cells. Cell membrane All organisms have something in common‚ they all have a cell membrane. The cell membrane is a barrier that separates a cell
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ascending aorta 8. aortic arch 9. brachiocephalic artery 10. left common carotid artery 11. left subclavian artery 12. pulmonary trunk 13. right pulmonary artery 14. left pulmonary artery 15. ligamentum arteriosum 16. right pulmonary veins 17. left pulmonary veins 18. right coronary artery 19. anterior cardiac vein t s w x v 20. left coronary artery 21. circumflex artery 22. anterior interventricular artery 23. apex of heart 24. great cardiac vein d e f g h s t p q r l i u j v w k m e
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