1.2 Arteries and veins contain collagen: a tough‚ fibrous protein to make them tough and durable. The artery wall stretches as blood is pumped in and then recoils as the heart relaxes. Blood flow is continual and there is a pulse. Contracting muscles and low pressure in the chest when breathing in assist blood flow in veins. Valves prevent backflow. There is no pulse and pressure is low. See diagrams and photomicrographs: Figure 1.10 on page 8 of the textbook. |Arteries
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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 blood toward the heart c site of exchange of nutrients 3. Name the three groups of arteries: 1. elastic artery 2. muscular artery 3. ateriole 4. Elastic arteries have a thick tunica
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a.Superior Vena Cava b.Main Pulmonary Artery c.Aorta ans.B 31.Heart valves that are shaped like half moons are called ... a.Atrioventricular Valves b.Mitral
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attached to the heart is the aorta. This carries nutrient filled blood to the rest of the body. 3. What is pulmonary circulation? Pulmonary circulation is the circulation of blood from the heart to the lungs through the pulmonary artery and pulmonary veins. The heart pumps deoxygenated blood from the heart to the lungs and then the blood is sent back being oxygenated‚ where it is then pumped to the rest of the body. 4. The sound you hear when you listen to your heart with a stethoscope
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the popliteal nerve can cause numbness‚ tingling‚ pain‚ and weakness in the lower leg‚ ankle and foot. Vascular injury could cause a bleed from either popliteal artery or vein causing a hematoma or blood pool that could cause significant pain in that area. The main types of injury would include soft tissue‚ muscle‚ nerve‚ and artery/vein‚ ligaments and menisci. A skin and soft tissue injury could include a mild contusion with some redness or bruising. Scratches may occur. If there is a deeper penetration
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right ventricle‚ left atrium and the left ventricle. Blood travels through the four chambers by the heart muscle contracting and relaxing pumping blood to the body and lungs. Blood vessels such as the arteries and veins are what transport the blood away from the heart and to the heart. The arteries transport blood away from the heart to the body organs‚
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the body through a series of arteries‚ veins and capillaries. Arteries and capillaries send blood from the heart to all areas of the body‚ while veins help bring that blood back to the heart. Arteries carries oxygenated blood away from the heart‚ and veins carry deoxygenated blood back to the heart. This process is called circulation. The roles are revered in pulmonary circulation. The pulmonary arteries bring deoxygenated blood to your lungs‚ while the pulmonary veins will bring
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following: Aorta. The aorta is the largest and principal artery in the body. From the aorta branches lead to all the organs of the body‚ supplying them with oxygen and nutrients. Coronary Artery. The coronary artery is also a branch of the aorta. It supplies the heart tissue with oxygen and nutrients. Pulmonary Artery. The pulmonary artery arises from the right-hand upper corner of the roght ventricle. It branches into the left and right pulmonary arteries which lead to the right and left lung respectively
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right femoral vein of a healthy female. I am your pilot Kierra Lewis. While we embark on this journey‚ make sure that you keep your hands and feet inside the submarine at all times. Fasten your seat belts and let’s start our journey! We will begin our journey in the femoral vein. As you can see the femoral vein is a blood vessel that is responsible for carrying blood from the leg back to the heart via the iliac veins. This is the largest vein in the groin area. Any blockages in this vein can lead to
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267-269‚ 277-280 * Direct calorimetry uses the measurement of heat production as an indication of metabolic rate. * Indirect calorimetry estimates metabolic rate via the measurement of oxygen consumption. * Energy expenditure can be expressed in L•min-1‚ kcal•min-1‚ ml•kg-1•min-1‚ METs‚ and kcal•kg-1•hr-1. * To convert L•min-1 to kcal•min-1‚ multiply by 5.0 kcal•L-1. * To convert L•min-1 to ml•kg-1•min-1‚ multiply by 1000 and divide by body weight in kilograms. * To convert
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