Primary hormone is:
Correct answer: D. Prolactin
- A. STH
- B. FSH
- C. LH
- D. Prolactin
Explanation
Prolactin is indeed a primary hormone, meaning it is directly secreted by the anterior pituitary gland and acts directly on its target tissues without requiring an intermediate hormone. Prolactin's primary function is to promote milk production (lactation) in mammals.
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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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