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hi friends let us understand the four
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valves of the heart and their functions
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the first one is right a valve or TripIt
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valve and this is a TripIt valve first
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let us see how blood flows through the
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heart to understand the functions of
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these valves so oxygen poor blood from
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the superior vena and inferior
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vena reaches the right atria of the
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heart from there the blood flows into
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here is the tricuspid valve so tricuspid
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valve is situated between right atrium
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and right ventricle it prevents the back
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flow of blood into the atrium during
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ventricular contraction it has three
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leaflets as we know that the movement of
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blood through heart is unidirectional
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that is regulated by these Wes so this
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is the TripIt valve the next one is the
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pulmonary semilunar valve so this is the
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pulmon Ary valve the blood from the
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right ventricle enters into pulmonary
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artery and this is regulated by this
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pulmonary valve this valve is located
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between this right ventricle and
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pulmonary artery it allows blood to Pump
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from right ventricle into this pulmonary
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artery prevents the back flow and has
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three leaflets so these two walls are
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involved in regulating the flow of
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then the third one is left a valve or
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mitral valve that is involved in
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regulating the flow of oxygenated blood
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after oxygenation blood enters into the
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vein then it enters into Atria left
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Atria then it moves into this left
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ventricle through this mitral valve or
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left AV valve so this is the metral
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valve it is located between left Atria
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it prevents the back flow of blood into
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the atrium during ventricular
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contraction it has two leaflets now the
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fourth valve is called the iotic
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semilunar valve or iotic valve from the
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left ventricle the blood flows into this
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Iota so this valve or iotic valve is
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situated between left ventricle and this
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Iota so this is Iota it is responsible
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for regulating blood flow from heart
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into Iota during contraction and
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preventing back flow during relaxation
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so this valve has three leaflets from
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Iota oxygenated blood moves into
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different parts of the body let me
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summarize the four walles are tricuspid
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valve pulmonary valve these two are
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involved in controlling the movement of
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oxygen po blood whereas the mitral valve
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and iotic valve is involved in
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regulating the flow of of oxygenated
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blood from the lungs hope you are clear
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you can watch our detailed video on
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heart structure function and circulation
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take care stay bless thank you so much
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you with Biology exams for.com
