a:  parathyroid gland ~
b:  a thermostat for blood calcium
What:  
A thermostat is sensitive to and responds to the temperature in a room. This gland is sensitive to the level of calcium in the blood and will respond to fluctuation in this ion.
Useful?
Writer:  Lucrezia
LCC: 
Where: Reference Link Has Evaporated
Date:   Mar 4 2015  3:33 PM
# 7441 Critique Analogy
