ATI RN
Endocrine System Questions Questions
Question 1 of 5
Exemplify hormones secreted by the anterior pituitary.
Correct Answer: C
Rationale: Anterior pituitary secretes growth hormone (GH, growth) and LH (luteinizing hormone, reproduction) tropic examples. ADH/oxytocin are posterior pituitary, hypothalamic-made. ACTH is anterior, but insulin is pancreatic. Thyroxine (thyroid) and cortisol (adrenal) are target gland products. GH-LH pair distinguishes anterior pituitary, key to its regulatory scope, unlike posterior or peripheral hormones.
Question 2 of 5
Epinephrine and norepinephrine from the adrenal medulla will produce the same results as the nervous system.
Correct Answer: A
Rationale: Epinephrine/norepinephrine mimic sympathetic nervous system raising heart rate, glucose, alertness fight-or-flight synergy. Parasympathetic (rest/digest) opposes slows heart, digestion focus. Somatic controls voluntary muscles, not visceral. Central (CNS) governs, not mimics. Sympathetic alignment distinguishes catecholamines, critical for stress response, unlike opposing, voluntary, or oversight systems.
Question 3 of 5
Which of the following is NOT true of Cushing syndrome?
Correct Answer: D
Rationale: Cushing syndrome, from cortisol excess (adrenal cortex hypersecretion), causes trunk obesity, moon face, and buffalo hump not hyposecretion, which is Addison's. Basic blood pH (alkalosis) can occur from mineralocorticoid effects, true in severe cases. Hyposecretion contradicts excess defines it. Hypersecretion basis distinguishes Cushing's, key to its phenotype, unlike pH or hypo-error.
Question 4 of 5
Which of the following is NOT a possible effect of anabolic steroid use?
Correct Answer: D
Rationale: Anabolic steroids (testosterone-like) can cause breast enlargement (gynecomastia), balding (androgenetic), acne (sebaceous stimulation), and stunted growth (epiphyseal closure) all possible. No effect listed is impossible all occur variably. Comprehensive impact distinguishes steroid side effects, key to misuse risks, unlike excluding any listed outcome.
Question 5 of 5
The family of steroid hormones are chemically derived from cholesterol and include:
Correct Answer: D
Rationale: Steroid hormones, derived from cholesterol, include corticosteroids (e.g., cortisol), sex hormones (e.g., testosterone), and vitamin D lipid-based, nuclear-acting. GnRH, GHRH, TRH are peptides (hypothalamus), not steroids. GH and ACTH are pituitary peptides, not cholesterol-derived. T4/T3 are amines from tyrosine, not steroids. Corticosteroids, sex hormones, and vitamin D's cholesterol origin distinguishes them, key to their synthesis and action, unlike peptide or amine families.