ATI RN
Endocrine System Questions Questions
Question 1 of 5
Which of the following statement is true?
Correct Answer: A
Rationale: Acromegaly, from pituitary GH excess post-puberty, causes bone thickening true. Addison's affects adrenals, not thyroid; hypothyroidism (low T3/T4) is true but not sole correct; Simmond's is pituitary, not adrenal. Acromegaly's pituitary origin distinguishes it, key to endocrine classification, though C is also true, A matches provided answer.
Question 2 of 5
Which of the following hormones are responsible for the 'fight-or-flight' response?
Correct Answer: A
Rationale: Epinephrine and norepinephrine, from the adrenal medulla, drive fight-or-flight, raising heart rate, glucose, and alertness via sympathetic activation. Insulin/glucagon regulate glucose, not acute stress. Estrogen/progesterone manage reproduction, not emergency responses. Thyroxin (metabolism) and melatonin (sleep) lack rapid stress roles. Catecholamines' swift, systemic effects distinguish them, key to survival responses, unlike metabolic or reproductive hormones.
Question 3 of 5
The secretions from which of these glands differs between males and females?
Correct Answer: C
Rationale: Gonadal glands (testes, ovaries) differ testes secrete testosterone, ovaries estrogen/progesterone, shaping sex-specific traits. Adrenal (cortisol, aldosterone), parathyroid (PTH), and pancreas (insulin) secretions are sex-agnostic, serving universal functions (stress, calcium, glucose). Gonadal hormone divergence distinguishes them, critical for reproductive dimorphism, unlike consistent outputs.
Question 4 of 5
Most endocrine organs are prodded into action by other hormones; this type of stimulus is called:
Correct Answer: A
Rationale: Hormonal stimuli, like TSH stimulating thyroid hormone release, drive most endocrine activity. Humoral stimuli (e.g., blood calcium for PTH) and neural stimuli (e.g., adrenal medulla) exist, but hormonal is predominant. 'Receptor-mediated' isn't a stimulus type. This prevalence distinguishes endocrine regulation, key to hormonal cascades, contrasting with chemical or nerve triggers.
Question 5 of 5
The secretions from which of these glands differs between males and females?
Correct Answer: C
Rationale: Gonadal glands (testes, ovaries) differ: testes secrete testosterone, ovaries estrogens/progesterone, defining sex-specific traits. Adrenal, parathyroid, and pancreas secretions (e.g., cortisol, PTH, insulin) are similar across sexes. Gonadal variation distinguishes it, critical for reproductive endocrinology, contrasting with universal hormones.