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- The liver absorbs most of the
- glucose, converting and storing it
- as insoluble glycogen. The blood
- leaving the liver through the
- hepatic vein has a blood-sugar
- level only slightly above the normal
- blood-sugar level. When this blood
- mixes with the glucose-depleted
- blood in the vena cava, a normal
- blood-sugar level is restored. When
- the liver's glycogen storage capacity
- is saturated, the liver converts the
- excess glucose into fat which is then
- stored in adipose tissues.
- Conversely, the liver breaks down
- glycogen and releases it as glucose into
- the blood stream when blood from the
- intestine has a low blood-sugar level.
- If the liver's 24 hour glycogen
- reserve is depleted, the liver converts amino acids into glucose in order to
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