Regulation of Blood Glucose

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Where is the pancreas found?
Underneath the stomach
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What is special about the pancreas?
It performs both endocrine and exocrine functions
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What do most cells within the pancreas do?
Manufacture and release digestive enzymes
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What type of function do most of the cells in the pancreas perform?
Exocrine Function
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How are the cells arranged?
They are arranged around tiny tubules where they excrete digestive enzymes into.
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How is the pancreatic duct formed?
Tiny tubules joining together
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What does the pancreatic duct do?
It collects fluid containing digestive enzymes and carries it to the first part of the small intestine
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What three enzymes does the pancreatic fluid contain?
Amylase, Trypsinogen, Lipase
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What is amylase?
A carbohydrase
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What is trypsinogen?
Inactive protease
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What else does the pancreatic fluid contain and why?
Sodium hydrogencarbonate to neutralise the digestive contents that has just left the acidic stomach
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What areas of the pancreas secrete hormones?
Islets of Langerhans
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What two types of cell do the Islets of Langerhans contain?
Alpha cells and Beta cells
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What do the alpha cells do?
Manufacture and secrete glucagon
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What do beta cells do?
Manufacture and secrete insulin
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What type of function do the Islets of Langerhans perform?
Endocrine fucntion
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Why are the Islets of Langerhans well supplied with blood capillaries?
To allow the hormones to be secreted directly into the blood.
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What does glucagon do?
Causes blood glucose levels to rise
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What does insulin do?
Causes blood glucose levels to fall.
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Other cards in this set

Card 2

Front

What is special about the pancreas?

Back

It performs both endocrine and exocrine functions

Card 3

Front

What do most cells within the pancreas do?

Back

Preview of the front of card 3

Card 4

Front

What type of function do most of the cells in the pancreas perform?

Back

Preview of the front of card 4

Card 5

Front

How are the cells arranged?

Back

Preview of the front of card 5
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