Ch. 45 - Hormones and the Endocrine System
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Problem 1
Which of the following is not an accurate statement? a. Hormones are chemical messengers that travel to target cells through the circulatory system. b. Hormones often regulate homeostasis through antagonistic functions. c. Hormones of the same chemical class usually have the same function. d. Hormones are often regulated through feedback loops.Problem 4
Which hormone is incorrectly paired with its action? a. oxytocin—stimulates uterine contractions during childbirth b. thyroxine—inhibits metabolic processes c. ACTH—stimulates the release of glucocorticoids by the adrenal cortex d. melatonin—affects biological rhythms and seasonal reproductionProblem 8
DRAW IT In mammals, milk production by mammary glands is controlled by prolactin and prolactin-releasing hormone. Draw a simple sketch of this pathway, including glands, tissues, hormones, routes for hormone movement, and effects.
