How are trachea prevented from collapsing?
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The hyaline cartilage in the tracheal wall provides support and keeps the trachea from collapsing. ... The posterior soft tissue allows for expansion of the esophagus, which is immediately posterior to the trachea.
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ᴛʜᴇ ʜʏᴀʟɪɴᴇ ᴄᴀʀᴛɪʟᴀɢᴇ ɪɴ ᴛʜᴇ ᴛʀᴀᴄʜᴇᴀʟ ᴡᴀʟʟ ᴘʀᴏᴠɪᴅᴇs sᴜᴘᴘᴏʀᴛ ᴀɴᴅ ᴋᴇᴇᴘs ᴛʜᴇ ᴛʀᴀᴄʜᴇᴀ ғʀᴏᴍ ᴄᴏʟʟᴀᴘsɪɴɢ. ᴛʜᴇ ᴘᴏsᴛᴇʀɪᴏʀ sᴏғᴛ ᴛɪssᴜᴇ ᴀʟʟᴏᴡs ғᴏʀ ᴇxᴘᴀɴsɪᴏɴ ᴏғ ᴛʜᴇ ᴇsᴏᴘʜᴀɢᴜs, ᴡʜɪᴄʜ ɪs ɪᴍᴍᴇᴅɪᴀᴛᴇʟʏ ᴘᴏsᴛᴇʀɪᴏʀ ᴛᴏ ᴛʜᴇ ᴛʀᴀᴄʜᴇᴀ.
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