1) type of blood vessel that carries oxygen-rich blood away from the heart toward the lungs or body. a) pulmonary vein b) capillaries c) veins d) arteries 2) muscular organ in the chest that pumps blood through blood vessels when it contracts. a) diaphragm  b) lung c) heart d) stomach 3) fluid connective tissue that circulates throughout the body through blood vessels. a) lymph  b) blood c) lymphatic system d) gut 4) main organ of the central nervous system that serves as the control center of the nervous system and of the body as a whole. a) brain b) heart c) stomach d) liver 5) human body system that consists of the heart, blood vessels, and blood and transports materials throughout the body. a) cardiovascular system b) respiratory system c) digestive system d) excretory system 6) basic unit of structure and function of living things. a) organ b) tissue c) cell d) heart muscle 7) type of blood vessel that generally carries deoxygenated blood toward the heart. a) veins b) arteries c) capillaries d) intestine 8) the vein that brings oxygen-poor blood back to the heart from the upper body. a) valves b) superior vena cava c) inferior vena cava d) capillaries 9) blood vessel that carries oxygen-poor blood away from the heart to the lungs. a) pulmonary veins b) pulmonary arteries c) aorta d) meiosis 10) organ of the respiratory system in which gas exchange takes place between the air and blood. a) heart b) lungs c) liver d) pancreas 11) vein that carries deoxygenated (oxygen-poor) blood from the lower body to the heart. a) pulmonary vein b) superior vena cava c) inferior vena cava d) pulmonary artery 12) part of the circulatory system that carries blood between the heart and lungs. a) arteries b) white blood cells c) red blood cells d) pulmonary circulation 13) either of the two lower chambers of the heart; right ventricle or left ventricle. a) aorta b) pulmonary circulation c) auricle d) ventricle 14) type of cell in blood that contains hemoglobin and carries oxygen. a) white blood cells b) red blood cells c) auricle d) ventricle 15) part of the circulatory system that carries blood between the heart and body. a) artery b) vein c) systemic circulation d) white blood cells

Blood Vessels

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