2. FUNCTIONAL ASPECTS OF THE HYPOTHALAMIC-HYPOPHYSEAL UNIT.

Cards (8)

  • (hypothalamic response pattern)Characteristic of each specific pituitary hormone:
    1. Open-loop negative feedback mechanisms
    2. Pulsatility
    3. Cylicity
  • Responses of hypothalamus appear to be rather diffuse but are steroptypical.
  • Negative feedback resembles a typical servomechanism and forms the basis of our understanding of hypothalamic-pituitary function.
  • Example pf negative feedback.
    The relationship between a thermostat and a home heating unit.
  • The furnace-thermostat functional relationship is termed an.
    Open-loop negative feedback system
  • An endocrine loops are of the open-loop variety, meaning that they are subject to external modulation and generally influences or modified by higher neural input or other hormones.
  • What is the simple example of an endocrine feedback loop?
    Hypothalamic-pituitary-thyroidal axis.
  • Explain in your mind...