Beginner Adrenal Medulla Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Where is the adrenal medulla located within the adrenal gland?
- Within the renal pelvis
- Central region of the adrenal gland
- Immediately outside the adrenal capsule
- Inside the peritoneal cavity
Q2. Which cells are the principal endocrine cells of the adrenal medulla?
- Hepatocytes
- Podocytes
- Parietal cells
- Chromaffin cells
Q3. From which embryologic cell population does the adrenal medulla develop?
- Surface ectoderm
- Mesodermal cortical cells
- Neural crest cells
- Foregut endoderm
Q4. Which substances are principally secreted by adrenal medullary chromaffin cells?
- Thyroxine and calcitonin
- Insulin and glucagon
- Epinephrine and norepinephrine
- Aldosterone and cortisol
Q5. Which division of the autonomic nervous system directly controls adrenal medullary secretion?
- Sympathetic nervous system
- Enteric nervous system only
- Parasympathetic nervous system only
- Somatic motor system
Q6. What type of sympathetic fibers synapse directly on adrenal chromaffin cells?
- Preganglionic sympathetic fibers
- Postganglionic sympathetic fibers only
- Somatic motor fibers
- Parasympathetic postganglionic fibers
Q7. Chromaffin cells are functionally comparable to which cells?
- Skeletal muscle fibers
- Renal tubular epithelial cells
- Sensory ganglion neurons
- Modified postganglionic sympathetic neurons
Q8. Which catecholamine is usually the predominant secretion of the human adrenal medulla?
- Acetylcholine
- Serotonin
- Epinephrine
- Dopamine exclusively
Q9. Where do adrenal medullary hormones enter after secretion?
- The bloodstream
- The renal pelvis
- The gastrointestinal lumen
- The peritoneal cavity
Q10. Which statement best describes the adrenal medulla?
- A lymphatic organ without endocrine function
- A renal structure producing urine
- A central neuroendocrine tissue composed of sympathetic chromaffin cells
- An outer mesodermal layer producing steroid hormones