Question

What is double circulation ?

Answer 1

Answer:

In human beings, the blood goes through the heart twice during each cycle, i.e. the blood passes through the human heart two times to supply once to the whole body. So, it is called Double Circulation of blood.

Answer 2

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ᴛʜᴇ ʜᴜᴍᴀɴ ᴄɪʀᴄᴜʟᴀᴛᴏʀʏ sʏsᴛᴇᴍ ɪs ᴀ ᴅᴏᴜʙʟᴇ ᴄɪʀᴄᴜʟᴀᴛᴏʀʏ sʏsᴛᴇᴍ. ɪᴛ ʜᴀs ᴛᴡᴏ sᴇᴘᴀʀᴀᴛᴇ ᴄɪʀᴄᴜɪᴛs ᴀɴᴅ ʙʟᴏᴏᴅ ᴘᴀssᴇs ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ʜᴇᴀʀᴛ ᴛᴡɪᴄᴇ: ᴛʜᴇ ᴘᴜʟᴍᴏɴᴀʀʏ ᴄɪʀᴄᴜɪᴛ ɪs ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ʜᴇᴀʀᴛ ᴀɴᴅ ʟᴜɴɢs. ᴛʜᴇ sʏsᴛᴇᴍɪᴄ ᴄɪʀᴄᴜɪᴛ ɪs ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ʜᴇᴀʀᴛ ᴀɴᴅ ᴛʜᴇ ᴏᴛʜᴇʀ ᴏʀɢᴀɴs.