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Endocrine System — HS Anatomy & Physiology practice questions

12 multiple-choice questions and 11 flashcards on Endocrine System, about 8% of the HS Anatomy & Physiology bank. Every one carries a written rationale.

Written and maintained by the CoStudy team · last updated 2026-10-02 · how we write and review questions

What this chapter covers

Endocrine System is one of 13 chapters in CoStudy's HS Anatomy & Physiology bank, and it holds 12 of the bank's 150 multiple-choice questions — roughly 8% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.

Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.

Free Endocrine System practice questions

3 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.

Which structure links the nervous system to the endocrine system by controlling the pituitary?

  1. Cerebellum
  2. Thyroid
  3. Pineal gland
  4. Hypothalamus

Answer: D — Hypothalamus

D) Correct — It sends releasing hormones and nerve signals to the pituitary. A) Coordinates movement. B) Is controlled by the pituitary, not the other way around. C) Makes melatonin.

Hormones reach their target cells by traveling through:

  1. nerves
  2. ducts to the skin
  3. the lymph only
  4. the bloodstream

Answer: D — the bloodstream

D) Correct — Only cells with matching receptors respond. A) Nerves carry electrical signals. B) Ducts carry exocrine secretions such as sweat. C) Hormones are carried mainly in the blood.

Cortisol, a long-term stress hormone, is made by the:

  1. adrenal medulla
  2. adrenal cortex
  3. pancreas
  4. posterior pituitary

Answer: B — adrenal cortex

B) Correct — The outer adrenal gland also makes aldosterone. A) Makes epinephrine and norepinephrine. C) Makes insulin and glucagon. D) Releases ADH and oxytocin.

Endocrine System flashcards

4 cards from the 11 in this chapter.

Thyroid hormones?

T3, T4 (regulate metabolism), calcitonin (lowers blood calcium).

Endocrine system function?

Hormones regulate body via bloodstream. Slower than nervous, longer-lasting.

Pituitary gland?

'Master gland.' Controls others. Anterior + posterior lobes.

Major endocrine glands?

Pituitary (master), thyroid, parathyroid, adrenal, pancreas, thymus, pineal, ovaries/testes.

Practise the full chapter

These are a sample. The full Endocrine System chapter runs 23 items with per-chapter progress tracking, on the web and in the iOS app.

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