Regulation of Hormone Secretion

• Most hormones regulated via

  negative feedback loops - as hormone level rises, secretion will slow down or stop
• Oxytocin is regulated by a

  positive feedback loop - suckling leads to oxytocin release, higher levels of oxytocin will increase rate of release
• Other factors influence hormone release:

  chemical levels within blood, endocrine system — tropic hormones control release of other hormones, nervous system stimulation