Biology / Unit 12 Bio 2945 short lesson, about 20 seconds
Growth Hormone: Direct and Indirect Mechanisms
Captions available
The idea
Growth hormone acts directly on adipose and liver tissue to raise blood glucose and fatty acid availability, and indirectly through liver insulin-like growth factors that drive tissue growth.
In practice
Underproduction of growth hormone in children can result in pituitary dwarfism; overproduction can result in gigantism.
Where people slip
Growth hormone's direct effect raises blood glucose, resembling diabetes mellitus's effect, though the two conditions have different causes.
Your place on the trail
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