Describe double circulation of blood in human beings. Why is it necessary?
Answers
It is necessary because it helps in oxyginating deoxiginated blood through the lungs to continue the circulation of heart.
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ʜᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ:-⏬⏬
ᴅᴏᴜʙʟᴇ ᴄɪʀᴄᴜʟᴀᴛɪᴏɴ sʏsᴛᴇᴍ ɪs ᴜsᴜᴀʟʟʏ ғᴏᴜɴᴅ ɪɴ ᴄᴏᴍᴘʟᴇx ᴏʀɢᴀɴɪsᴍs ʟɪᴋᴇ ᴜs , ʜᴜᴍᴀɴs.ɪᴛ ʜᴀs ᴛᴡᴏ ᴘᴀʀᴛs - ᴘᴜʟᴍᴏɴᴀʀʏ ᴀɴᴅ sʏsᴛᴇᴍɪᴄ.
ʟᴇᴛ's sᴛᴀʀᴛ ғʀᴏᴍ ᴘᴜʟᴍᴏɴᴀʀʏ ᴄɪʀᴄᴜʟᴀᴛɪᴏɴ . ᴛʜᴇ ʀɪɢʜᴛ ᴠᴇɴᴛʀɪᴄʟᴇ ᴘᴜᴍᴘs ᴛʜᴇ ᴅᴇᴏxʏɢᴇɴᴀᴛᴇᴅ ʙʟᴏᴏᴅ ɪɴᴛᴏ ᴛʜᴇ ʟᴜɴɢs ᴀɴᴅ ɪᴛ ɪs ʀᴇᴛᴜʀɴᴇᴅ ɪɴ ᴛʜᴇ ʟᴇғᴛ ᴀᴜʀɪᴄʟᴇ. sɪᴍᴜʟᴛᴀɴᴇᴏᴜsʟʏ ɪɴ sʏsᴛᴇᴍɪᴄ ᴄɪʀᴄᴜʟᴀᴛɪᴏɴ , ᴛʜᴇ ʟᴇғᴛ ᴠᴇɴᴛʀɪᴄʟᴇ ᴘᴜᴍᴘs ʙʟᴏᴏᴅ ᴛᴏ ᴀʟʟ ᴘᴀʀᴛs ᴏғ ᴛʜᴇ ʙᴏᴅʏ ᴀɴᴅ ʀᴇᴛᴜʀɴs ʙᴀᴄᴋ ɪɴ ᴛʜᴇ ʀɪɢʜᴛ ᴀᴜʀɪᴄʟᴇ. ᴠᴀʟᴠᴇs ɪɴ ʜᴇᴀʀᴛ ᴄʜᴇᴄᴋ ᴛʜᴀᴛ ᴛʜᴇ ʙʟᴏᴏᴅ ғʟᴏᴡs ɪɴ ᴏɴᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏɴʟʏ. ɪɴ ᴛʜɪs sʏsᴛᴇᴍ, ʙʟᴏᴏᴅ ғʟᴏᴡs ᴛᴡɪᴄᴇ ᴛᴏ ᴄᴏᴍᴘʟᴇᴛᴇ ᴀ sɪɴɢʟᴇ ᴄʏᴄʟᴇ ᴀɴᴅ ɪs ᴋɴᴏᴡɴ ᴀs ᴅᴏᴜʙʟᴇ ᴄɪʀᴄᴜʟᴀᴛᴏʀʏ sʏsᴛᴇᴍ. ɪᴛ ɪs ɴᴇᴄᴇssᴀʀʏ ғᴏʀ ᴍᴀɪɴᴛᴀɪɴɪɴɢ ʙᴏᴅʏ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ᴄᴏʟʟᴇᴄᴛɪɴɢ ᴄᴏ2 ғʀᴏᴍ ᴄᴇʟʟs ᴀɴᴅ ᴘʀᴏᴠɪsɪɴɢ ᴏxʏɢᴇɴ ᴀɴᴅ ᴇɴᴇʀɢʏ ᴛᴏ ᴄᴇʟʟs & ᴛɪssᴜᴇs.