Web1. Cardiovascular fitness—also known as cardiorespiratory fitness, is the ability of the heart, lungs, and vascular system to deliver oxygen-rich blood to working muscles during sustained physical activity. 2. Muscular strength—the amount of force a muscle or muscle group can exert against a resistance. The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs. Gas exchange in the lungs occurs in milli…
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WebApr 6, 2024 · respiratory disease, any of the diseases and disorders of the airways and the lungs that affect human respiration. Diseases of the respiratory system may affect any of … WebDefenses of the respiratory system. Exposed as it is to the outside environment, the respiratory tract possesses a complicated but comprehensive series of defenses against … kitchen valances only
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WebMar 31, 2024 · human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide. The human gas-exchanging organ, the lung, is located in the thorax, where its delicate tissues are protected by … WebDec 3, 2024 · December 3, 2024. The lungs remain protected from various inhaled particles, microorganisms and toxic gases by the respiratory defense mechanism. There are various ways by which this mechanism works such as filtration of the air, the muco-ciliary clearance system, the cough reflex, reflex broncho-constriction and alveolar macrophages. WebMar 24, 2024 · The circulatory system, which is made up of the heart and blood vessels, supports the respiratory system by bringing blood to and from the lungs. The circulatory … maes y ddraig carmarthen