These two hormones are produced by the hypothalamus but stored in the posterior pituitary:
Correct answer: B. ADH and oxytocin
- A. Insulin and glucagon
- B. ADH and oxytocin
- C. Growth hormone and prolactin
- D. Thymosin and adrenalin
Explanation
ADH and oxytocin are synthesized in the hypothalamus and transported down axons to the posterior pituitary for release. They are not stored in vesicles like other hormones because they are produced on-demand and released directly into the bloodstream when needed. This allows for precise regulation of their secretion in response to physiological stimuli.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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