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Dictionary » V » Valves Valvesvalve-shell (Science: zoology) Any fresh water gastropod of the genus valvata. or valves are flap-like structures that allow blood to flow in one direction. The heart has two kinds of valves, atrioventricular and semilunar valves. ![]()
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Results from our forumcan someone please explain... of the heart beat. A normal heartbeat makes a lub-dup sound. This sound is created when the heart tissue vibrates , it is pushed against the heart valves and bounces back. In the case of stress, stress can raise heartbeat rates, you would be listening for an increase in the heart rate to determine ...
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Kidney Structure/Functions... Surface isn't as big an issue with moving fluid and fast processing. 3. If we're not discussing urine on the legs, I've got nothing. 4. There are valves along the way that should keep bladder bacteria from moving into the ureters, but that's the only gender-related factor I can think of.
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Important test?... virulence is not entirely clear. Although it does impede phagocytosis in the absence of complement, it also impedes colonization of damaged heart valves, perhaps by masking adhesins. http://www.textbookofbacteriology.net/staph.html
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More Questions on Circulatory SystemHello everyone, I have the following questions on the circulatory system. Thanks in advance! --- 1. In general, one-way valves are found in lymph vessels, veins, and the heart muscle. There wouldn't be any in the artery because blood is continually flowing away from the heart under ...
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Heart Damage Caused by viral infection... mistaken, heart attack can be caused by 'molecular minicry', where the antibodies produced to attack the S. aureus infection also attack the heart valves. Is this similar?
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