Question

what is menstrual cycle?​

Answer 1

Answer:

The menstrual cycle is a series of natural changes in the uterus and ovaries of the female reproductive system that make pregnancy possible. The ovarian cycle controls the production and release of eggs. The uterine cycle governs the preparation and maintenance of the lining of the uterus to receive a fertilized egg.

Answer 2

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ᴛʜᴇ ʀᴇᴘʀᴏᴅᴜᴄᴛɪᴠᴇ ᴄʏᴄʟᴇ ɪɴ ᴛʜᴇ ʜᴜᴍᴀɴ ғᴇᴍᴀʟᴇ ᴀɴᴅ ʀᴇʟᴀᴛᴇᴅ ᴘʀɪᴍᴀᴛᴇs ɪs ᴄᴀʟʟᴇᴅ ᴍᴇɴsᴛʀᴜᴀʟ ᴄʏᴄʟᴇ.

• ᴛʜᴇ ғɪʀsᴛ ᴍᴇɴsᴛʀᴜᴀᴛɪᴏɴ ʙᴇɢɪɴs ᴀᴛ ᴘᴜʙᴇʀᴛʏ (ᴀᴛ ᴛʜᴇ ᴀɢᴇ ᴏғ 10-12 ʏᴇᴀʀs) ᴀɴᴅ ɪs ᴄᴀʟʟᴇᴅ ᴍᴇɴᴀʀᴄʜᴇ.
• ɪɴ ʜᴜᴍᴀɴ ғᴇᴍᴀʟᴇs, ᴍᴇɴsᴛʀᴜᴀᴛɪᴏɴ ɪs ʀᴇᴘᴇᴀᴛᴇᴅ ᴀᴛ ᴀɴ ᴀᴠᴇʀᴀɢᴇ ɪɴᴛᴇʀᴠᴀʟ ᴏғ ᴀʙᴏᴜᴛ 28/29 ᴅᴀʏs ᴀɴᴅ ᴛʜᴇ ᴄʏᴄʟᴇ ᴏғ ᴇᴠᴇɴᴛs sᴛᴀʀᴛɪɴɢ ғʀᴏᴍ ᴏɴᴇ ᴍᴇɴsᴛʀᴜᴀᴛɪᴏɴ ᴛɪʟʟ ᴛʜᴇ ɴᴇxᴛ ᴏɴᴇ ɪs ᴄᴀʟʟᴇᴅ ᴛʜᴇ ᴍᴇɴsᴛʀᴜᴀʟ ᴄʏᴄʟᴇ.
• ᴏɴᴇ ᴏᴠᴜᴍ ɪs ʀᴇʟᴇᴀsᴇᴅ ᴅᴜʀɪɴɢ ᴛʜᴇ ᴍɪᴅᴅʟᴇ ᴏғ ᴇᴀᴄʜ ᴍᴇɴsᴛʀᴜᴀʟ ᴄʏᴄʟᴇ.
• ᴛʜᴇ ᴄʏᴄʟᴇ sᴛᴀʀᴛs ᴡɪᴛʜ ᴛʜᴇ ᴍᴇɴsᴛʀᴜᴀʟ ᴘʜᴀsᴇ, ᴡʜᴇɴ ᴍᴇɴsᴛʀᴜᴀʟ ғʟᴏᴡ ᴏᴄᴄᴜʀs ᴀɴᴅ ɪᴛ ʟᴀsᴛs ғᴏʀ 3-5 ᴅᴀʏs.
• ᴛʜᴇ ᴍᴇɴsᴛʀᴜᴀʟ ғʟᴏᴡ ʀᴇsᴜʟᴛs ᴅᴜᴇ ᴛᴏ ʙʀᴇᴀᴋᴅᴏᴡɴ ᴏғ ᴇɴᴅᴏᴍᴇᴛʀɪᴀʟ ʟɪɴɪɴɢ ᴏғ ᴛʜᴇ ᴜᴛᴇʀᴜs ᴀɴᴅ ɪᴛs ʙʟᴏᴏᴅ ᴠᴇssᴇʟs ᴡʜɪᴄʜ ғᴏʀᴍ ᴛʜᴇ ʟɪǫᴜɪᴅ ᴛʜᴀᴛ ᴄᴏᴍᴇs ᴏᴜᴛ ᴛʜʀᴏᴜɢʜ ᴠᴀɢɪɴᴀ.
• ᴍᴇɴsᴛʀᴜᴀᴛɪᴏɴ ᴏᴄᴄᴜʀs ᴏɴʟʏ ɪғ ᴛʜᴇ ʀᴇʟᴇᴀsᴇᴅ ᴏᴠᴜᴍ ɪs ɴᴏᴛ ғᴇʀᴛɪʟɪsᴇᴅ.
• ʟᴀᴄᴋ ᴏғ ᴍᴇɴsᴛʀᴜᴀᴛɪᴏɴ ᴍᴀʏ ʙᴇ ɪɴᴅɪᴄᴀᴛɪᴠᴇ ᴏғ ᴘʀᴇɢɴᴀɴᴄʏ ᴏʀ ᴍᴀʏ ᴀʟsᴏ ʙᴇ ᴄᴀᴜsᴇᴅ ᴅᴜᴇ ᴛᴏ sᴏᴍᴇ ᴏᴛʜᴇʀ ᴜɴᴅᴇʀʟʏɪɴɢ ᴄᴀᴜsᴇs ʟɪᴋᴇ sᴛʀᴇss, ᴘᴏᴏʀ ʜᴇᴀʟᴛʜ ᴇᴛᴄ.
• ᴛʜᴇ ᴍᴇɴsᴛʀᴜᴀʟ ᴘʜᴀsᴇ ɪs ғᴏʟʟᴏᴡᴇᴅ ʙʏ ᴛʜᴇ ғᴏʟʟɪᴄᴜʟᴀʀ ᴘʜᴀsᴇ. ᴅᴜʀɪɴɢ ғᴏʟʟɪᴄᴜʟᴀʀ ᴘʜᴀsᴇ, ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ғᴏʟʟɪᴄʟᴇs ɪɴ ᴛʜᴇ ᴏᴠᴀʀʏ ɢʀᴏᴡ ᴛᴏ ʙᴇᴄᴏᴍᴇ ᴀ ғᴜʟʟʏ ᴍᴀᴛᴜʀᴇ ɢʀᴀᴀғɪᴀɴ ғᴏʟʟɪᴄʟᴇ ᴀɴᴅ sɪᴍᴜʟᴛᴀɴᴇᴏᴜsʟʏ ᴛʜᴇ ᴇɴᴅᴏᴍᴇᴛʀɪᴜᴍ ᴏғ ᴜᴛᴇʀᴜs ʀᴇɢᴇɴᴇʀᴀᴛᴇs ᴛʜʀᴏᴜɢʜ ᴘʀᴏʟɪғᴇʀᴀᴛɪᴏɴ. ᴛʜᴇsᴇ ᴄʜᴀɴɢᴇs ɪɴ ᴛʜᴇ ᴏᴠᴀʀʏ ᴀɴᴅ ᴛʜᴇ ᴜᴛᴇʀᴜs ᴀʀᴇ ɪɴᴅᴜᴄᴇᴅ ʙʏ ᴄʜᴀɴɢᴇs ɪɴ ᴛʜᴇ ʟᴇᴠᴇʟs ᴏғ ᴘɪᴛᴜɪᴛᴀʀʏ ᴀɴᴅ ᴏᴠᴀʀɪᴀɴ ʜᴏʀᴍᴏɴᴇs.
• ᴛʜᴇ sᴇᴄʀᴇᴛɪᴏɴ ᴏғ ɢᴏɴᴀᴅᴏᴛʀᴏᴘɪɴs (ʟʜ ᴀɴᴅ ғsʜ) ɪɴᴄʀᴇᴀsᴇs ɢʀᴀᴅᴜᴀʟʟʏ ᴅᴜʀɪɴɢ ᴛʜᴇ ғᴏʟʟɪᴄᴜʟᴀʀ ᴘʜᴀsᴇ ᴀɴᴅ sᴛɪᴍᴜʟᴀᴛᴇs ғᴏʟʟɪᴄᴜʟᴀʀ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴀs ᴡᴇʟʟ ᴀs sᴇᴄʀᴇᴛɪᴏɴ ᴏғ ᴇsᴛʀᴏɢᴇɴs ʙʏ ᴛʜᴇ ɢʀᴏᴡɪɴɢ ғᴏʟʟɪᴄʟᴇs.
• ʙᴏᴛʜ ʟʜ ᴀɴᴅ ғsʜ ᴀᴛᴛᴀɪɴ ᴀ ᴘᴇᴀᴋ ʟᴇᴠᴇʟ ɪɴ ᴛʜᴇ ᴍɪᴅᴅʟᴇ ᴏғ ᴄʏᴄʟᴇ (ᴀʙᴏᴜᴛ 14ᴛʜ ᴅᴀʏ).
• ʀᴀᴘɪᴅ sᴇᴄʀᴇᴛɪᴏɴ ᴏғ ʟʜ ʟᴇᴀᴅɪɴɢ ᴛᴏ ɪᴛs ᴍᴀxɪᴍᴜᴍ ʟᴇᴠᴇʟ ᴅᴜʀɪɴɢ ᴛʜᴇ ᴍɪᴅ-ᴄʏᴄʟᴇ ᴄᴀʟʟᴇᴅ ʟʜ sᴜʀɢᴇ ɪɴᴅᴜᴄᴇs ʀᴜᴘᴛᴜʀᴇ ᴏғ ɢʀᴀᴀғɪᴀɴ ғᴏʟʟɪᴄʟᴇ ᴀɴᴅ ᴛʜᴇʀᴇʙʏ ᴛʜᴇ ʀᴇʟᴇᴀsᴇ ᴏғ ᴏᴠᴜᴍ (ᴏᴠᴜʟᴀᴛɪᴏɴ).
• ᴛʜᴇ ᴏᴠᴜʟᴀᴛɪᴏɴ (ᴏᴠᴜʟᴀᴛᴏʀʏ ᴘʜᴀsᴇ) ɪs ғᴏʟʟᴏᴡᴇᴅ ʙʏ ᴛʜᴇ ʟᴜᴛᴇᴀʟ ᴘʜᴀsᴇ ᴅᴜʀɪɴɢ ᴡʜɪᴄʜ ᴛʜᴇ ʀᴇᴍᴀɪɴɪɴɢ ᴘᴀʀᴛs ᴏғ ᴛʜᴇ ɢʀᴀᴀғɪᴀɴ ғᴏʟʟɪᴄʟᴇ ᴛʀᴀɴsғᴏʀᴍ ᴀs ᴛʜᴇ ᴄᴏʀᴘᴜs ʟᴜᴛᴇᴜᴍ.
• ᴛʜᴇ ᴄᴏʀᴘᴜs ʟᴜᴛᴇᴜᴍ sᴇᴄʀᴇᴛᴇs ʟᴀʀɢᴇ ᴀᴍᴏᴜɴᴛs ᴏғ ᴘʀᴏɢᴇsᴛᴇʀᴏɴᴇ ᴡʜɪᴄʜ ɪs ᴇssᴇɴᴛɪᴀʟ ғᴏʀ ᴍᴀɪɴᴛᴇɴᴀɴᴄᴇ ᴏғ ᴛʜᴇ ᴇɴᴅᴏᴍᴇᴛʀɪᴜᴍ.