Wednesday, 20 January 2016

I 'liver' you...

'Dissection club students had liver today. We noted the size of the organ (it is the biggest) and the density of the tissue ( it is very metabolically active - when I was an A level student I had to write an essay on the twelve functions of the liver!).
Here we can see the left and right (larger) lobes.  It is still attached to a bit of the diaphragm. The top surface is very smooth and lubricated to reduce friction when the diaphragm contracts.



On the rear side we were able to see the hepatic portal vein which brings glucose rich blood from the small intestine to be converted into the storage carbohydrate glycogen. 
We could also see the gall bladder and bile duct.  Bile is poured onto the chyme (partially digested food) that is leaving the stomach. It is alkaline to neutralise the stomach acid. It's job is to emulsify fat. 


The liver, being so metabolically active, also produces a lot of heat as a by product.  As the blood passes through the liver it picks up the heat which is then distributed to the rest of the body.  The Tudors knew this and therefore thought the liver was a very important organ, like we do the heart.  So they might have said to each other, "I liver you."


No comments:

Post a Comment