The Nightmare Before Concha
.
What’s this?
What’s this?
It's a nasal concha
This image shows a curled concha in the nasal cavity. These structures are lined with respiratory mucosa - a lining that is covered in ciliated pseudostratified epithelia and has goblet cells scattered throughout.
.
Fact: The air we breathe is filthy!
.
The goblet cells in the respiratory mucosa lining our airway secrete mucus. This mucus traps the tiny particles floating around in the filthy air when we breath in. At the same time the cilia on the surface of the epithelium sway in one direction to propel this particle laden mucus out of the airway. Together they form an amazing biological escalator that moves the any junk you inhale away from your lungs to be coughed up or swallowed and thus preventing you from getting a lung infection every time you inhale.
.
The nasal conchae are a series of bony structures that project into the nasal cavity on each side. The fact that they are curly means that their surface area is greater than if they were just flat… so that means there is more respiratory mucosa covering them… and if there is more respiratory mucosa then that means there is increased efficiency for trapping and moving inhaled junk! Additionally, the curls project into the airway. This means when we breathe in, the air does not fly straight into your lungs but instead its flow is disrupted significantly to ensure that everything you inhale is mixed up well and has the opportunity to come into contact with the amazing epithelium of the respiratory tract!
.
No wonder mom always says breathe through your nose and not through your mouth! It might just save your life!
#医学生Medic[超话]##medicaltalks#
.
What’s this?
What’s this?
It's a nasal concha
This image shows a curled concha in the nasal cavity. These structures are lined with respiratory mucosa - a lining that is covered in ciliated pseudostratified epithelia and has goblet cells scattered throughout.
.
Fact: The air we breathe is filthy!
.
The goblet cells in the respiratory mucosa lining our airway secrete mucus. This mucus traps the tiny particles floating around in the filthy air when we breath in. At the same time the cilia on the surface of the epithelium sway in one direction to propel this particle laden mucus out of the airway. Together they form an amazing biological escalator that moves the any junk you inhale away from your lungs to be coughed up or swallowed and thus preventing you from getting a lung infection every time you inhale.
.
The nasal conchae are a series of bony structures that project into the nasal cavity on each side. The fact that they are curly means that their surface area is greater than if they were just flat… so that means there is more respiratory mucosa covering them… and if there is more respiratory mucosa then that means there is increased efficiency for trapping and moving inhaled junk! Additionally, the curls project into the airway. This means when we breathe in, the air does not fly straight into your lungs but instead its flow is disrupted significantly to ensure that everything you inhale is mixed up well and has the opportunity to come into contact with the amazing epithelium of the respiratory tract!
.
No wonder mom always says breathe through your nose and not through your mouth! It might just save your life!
#医学生Medic[超话]##medicaltalks#
Day27
“Think of the fossil fuel industry as an AI system. We set it up with this fixed objective of maximising its profit and it has won,” Prof Russell says. “It is a machine that has human components but functions as a machine. It has outwitted the rest of the human race because it is a sort of a superintelligent entity.”
“Think of the fossil fuel industry as an AI system. We set it up with this fixed objective of maximising its profit and it has won,” Prof Russell says. “It is a machine that has human components but functions as a machine. It has outwitted the rest of the human race because it is a sort of a superintelligent entity.”
度过了入职以来最轻松的一个周末。跟同事还有学生一起去看了Gemini Man，过程中我仨练英语听力，学生跟读中文字幕。吃完饭一起去打了电动，逛了一圈有的没的，玩到9点多才回去。送回家后，跟⭕️两个人哼着小曲走在路上，有点感受到小时候那种最简单的快乐。
这一周总的来说还行，值得高兴的是六个班的学生名字记得都差不多了。代了课才知道我导有多nice，每个教过的学生他基本都记得名字，这实在太难得。现在日常快乐大多都是学生给的，当然辛苦也是…[二哈] Bye, this week.
这一周总的来说还行，值得高兴的是六个班的学生名字记得都差不多了。代了课才知道我导有多nice，每个教过的学生他基本都记得名字，这实在太难得。现在日常快乐大多都是学生给的，当然辛苦也是…[二哈] Bye, this week.
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