ATI LPN
ATI Targeted Medical Surgical Endocrine Questions
Question 1 of 5
Which of the following inhibits the secretion of growth hormone by the anterior pituitary?
Correct Answer: D
Rationale: Growth hormone is secreted in pulsatile fashion, with a large burst occurring during deep sleep (sleep stage 3 or 4). Growth hormone secretion is increased by sleep, stress, puberty, starvation, and hypoglycemia. Somatomedins are generated when growth hormone acts on its target tissues; they inhibit growth hormone secretion by the anterior pituitary, both directly and indirectly (by stimulating somatostatin release).
Question 2 of 5
is/are synthesized by the endoplasmic reticulum-Golgi complex mechanism.
Correct Answer: A
Rationale: Peptides are synthesized and packaged via the ER-Golgi system.
Question 3 of 5
Estrogens, testosterone, cortisol, and aldosterone are all derived from
Correct Answer: B
Rationale: These are steroid hormones synthesized from cholesterol.
Question 4 of 5
Diurnal rhythms are
Correct Answer: A
Rationale: Diurnal rhythms (e.g., cortisol) follow a 24-hour cycle linked to light-dark patterns.
Question 5 of 5
Melatonin is produced in the
Correct Answer: C
Rationale: The pineal gland synthesizes melatonin.