cells and sheets of elastin Outer Tunica externa Collagen fibers that protect and reinforce the blood vessels and anchor it to surrounding structures 2. In the following list of characteristics‚ put “A” for artery‚ “C” for capillary‚ and “V” for vein: v contain the lowest pressure a contain the highest pressure a has thick tunica media v thin tunica media c smallest of the blood vessels a carries blood away from heart v largest lumen—blood reservoir c has only one tunic (intima) v carries
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Low Molecular Weight Heparin Paper Low molecular weight heparin is typically used for patients who need to be treated for deep vein thrombosis. Deep vein thrombosis (DVT) is a blood clot (thrombus) in a deep vein usually in the legs. These clots are dangerous because they can break loose‚ travel through the bloodstream to the lungs‚ and block blood flow in the lungs (pulmonary embolism). There are many reasons why clots form in a patient. Mainly
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system. Oxygenated blood is pumped away from the heart to the rest of the body‚ while deoxygenated blood is pumped to the lungs where it is re-oxygenated before returning to the heart. The total blood volume is unevenly distrubted among the arteries‚ veins‚ and capillaries. The heart arteries and capillaries in the pulmonary and systemic circuits normally contain30 percent of blood volume like 1.5 liters of whole blood. And the venous system contains the rest 65-70 percent and that’s about 3.5 liters
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A&P 203- Study Guide (Review) for Practical #2 Blood Vessels 1. Identify Arteries and Veins on checklist on: Torso model Blood vessel Flat board 1/2-size Muscle Figure Arm and Leg models Life size Wall Chart. 2. Slides - Identify artery‚ vein‚ capillary and aorta. - Identify the three tunics (wall layers) in all vessels and the tissue that composes each tunic. Tunica interna (intima)- endothelium (simple squamous epithelium) Tunica media- smooth muscle Tunica externa
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best to get them situated. Arteriosclerosis‚ 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
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Athens. Both scientists base their models of respiration and blood distribution in the body from technological-ladenness of observation. Erasistratus proposes that heart uses force propulsion to distribute air and blood throughout the arteries and veins. His concept focuses on “the filling towards what is being” emptied‚ making the body a quasi-pneumatic machine. Erasistratus believes that blood and air distribution underwent a unidirectional flow (rather than a circulatory one). His model has its
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Include in your explanation the major concepts you learned and any safety concerns associated with the lab. Learning the structural and functional differences among arteries‚ veins‚ and capillaries. Identify the major arteries arising from the aorta through observation and dissection of a preserved specimen. Identify the major veins draining into the superior and inferior vena cava through observation and dissection of a preserved specimen wear approved safety glasses at all times while working on lab
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more oxygen. The pump on the left hand side receives oxygenated blood and then pumps it into the arteries to deliver its oxygen around the body. The deoxygenated blood enters the top right chamber of the heart‚ named the right atrium‚ through two veins. Blood from the upper portion of the body‚ like the head and arms‚ flows in through the superior vena cava. Blood from the lower body‚ which are the legs‚ comes in by the inferior vena cava. The blood that is in need of oxygen is forced to leave the
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Introduction Cardiovascular Dynamics and the Cardiovascular Physiology experiments both have multiple goals. The first experiment aims to understand how blood flow‚ pressure gradient‚ and resistance relate to one another. To understand this‚ resistance and contributing factors‚ such as vessel radius‚ viscosity‚ and vessel length must be studied. The effects of vessel radius and stroke volume on the ventricular pump should also examined. The experiment also calls for an understanding of cardiovascular
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more dimensions and features and is not as flat as were taught at a young age. The heart a muscular organ about the size of a fist‚ located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system. The heart has four chambers; the left and right atrium‚ left and right ventricle and the coronary Arteries that run along the surface of the heart and provide oxygen-rich blood to the heart muscle (The Heart 2014)
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