what valve is used to oxygenated blood enters the left ventricle?
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ᴏxʏɢᴇɴ-ʀɪᴄʜ ʙʟᴏᴏᴅ ғʟᴏᴡs ғʀᴏᴍ ᴛʜᴇ ʟᴜɴɢs ʙᴀᴄᴋ ɪɴᴛᴏ ᴛʜᴇ ʟᴇғᴛ ᴀᴛʀɪᴜᴍ (ʟᴀ), ᴏʀ ᴛʜᴇ ʟᴇғᴛ ᴜᴘᴘᴇʀ ᴄʜᴀᴍʙᴇʀ ᴏғ ᴛʜᴇ ʜᴇᴀʀᴛ, ᴛʜʀᴏᴜɢʜ ғᴏᴜʀ ᴘᴜʟᴍᴏɴᴀʀʏ ᴠᴇɪɴs. ᴏxʏɢᴇɴ-ʀɪᴄʜ ʙʟᴏᴏᴅ ᴛʜᴇɴ ғʟᴏᴡs ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴍɪᴛʀᴀʟ ᴠᴀʟᴠᴇ (ᴍᴠ) ɪɴᴛᴏ ᴛʜᴇ ʟᴇғᴛ ᴠᴇɴᴛʀɪᴄʟᴇ (ʟᴠ), ᴏʀ ᴛʜᴇ ʟᴇғᴛ ʟᴏᴡᴇʀ ᴄʜᴀᴍʙᴇʀ.
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Answer:
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
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