Question

List two important functions of columnar epithelium.​

Answer 1

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$\implies$ ғᴜɴᴄᴛɪᴏɴs ᴏғ ᴇᴘɪᴛʜᴇʟɪᴀʟ ᴄᴇʟʟs ɪɴᴄʟᴜᴅᴇ sᴇᴄʀᴇᴛɪᴏɴ, sᴇʟᴇᴄᴛɪᴠᴇ ᴀʙsᴏʀᴘᴛɪᴏɴ, ᴘʀᴏᴛᴇᴄᴛɪᴏɴ, ᴛʀᴀɴsᴄᴇʟʟᴜʟᴀʀ ᴛʀᴀɴsᴘᴏʀᴛ, ᴀɴᴅ sᴇɴsɪɴɢ. ᴇᴘɪᴛʜᴇʟɪᴀʟ ʟᴀʏᴇʀs ᴄᴏɴᴛᴀɪɴ ɴᴏ ʙʟᴏᴏᴅ ᴠᴇssᴇʟs, sᴏ ᴛʜᴇʏ ᴍᴜsᴛ ʀᴇᴄᴇɪᴠᴇ ɴᴏᴜʀɪsʜᴍᴇɴᴛ ᴠɪᴀ ᴅɪғғᴜsɪᴏɴ ᴏғ sᴜʙsᴛᴀɴᴄᴇs ғʀᴏᴍ ᴛʜᴇ ᴜɴᴅᴇʀʟʏɪɴɢ ᴄᴏɴɴᴇᴄᴛɪᴠᴇ ᴛɪssᴜᴇ, ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ʙᴀsᴇᴍᴇɴᴛ ᴍᴇᴍʙʀᴀɴᴇ.

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