Which of the following is part of the anterior pituitary?

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: C

Rationale: Pituitary gland, in the brain's sella turcica, secretes hormones (e.g., GH, TSH) master gland. Adrenals sit atop kidneys, not brain. Pancreas is abdominal, glucose-focused. Parathyroids are neck-based, calcium regulators. Pituitary's intracranial location distinguishes it, critical for endocrine control, unlike external glands.

Correct Answer: C

Rationale: Oxytocin release (e.g., labor) uses positive feedback uterine contractions increase oxytocin, amplifying delivery. Negative feedback stabilizes (e.g., cortisol). 'Neutral' isn't a mechanism undefined. 'Hormonal' isn't feedback type control mode. Positive feedback distinguishes oxytocin's escalating role, critical for childbirth, unlike stabilizing or vague options.

Correct Answer: D

Rationale: Thyroid gland uses iodine to synthesize T3/T4 from thyroglobulin metabolic hormones. Adrenal cortex (cortisol) uses cholesterol, no iodine. Pancreas (insulin) needs amino acids. Parathyroids (PTH) regulate calcium, no iodine. Iodine's thyroid necessity distinguishes it, critical for hormone synthesis, unlike steroid, peptide, or calcium glands.

Correct Answer: B

Rationale: PTH doesn't decrease blood calcium it raises it via bone release, kidney reabsorption, and vitamin D activation (1,25-DHC) all increase Ca²⁺. Decreasing calcium is calcitonin's role, not PTH opposite action. PTH's consistent elevation distinguishes it, critical for hypocalcemia correction, unlike erroneous lowering claim.