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HESI A&P Practice Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
Which type of white blood cells fights infections?✔✔Leukocytes
Which hormone stimulates milk production?✔✔Prolactin
Which hormone regulates calcium levels in the blood?✔✔Parathyroid hormone
Which organ in the male reproductive system stores sperm until ejaculation?✔✔Epididymis
Which vitamin is produced when skin is exposed to sunlight?✔✔Vitamin D
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Which gland regulates metabolism and calcium levels?✔✔Thyroid gland
Which hormone triggers ovulation in females?✔✔Luteinizing hormone
Which gland is located on top of the kidneys?✔✔Adrenal glands
Which hormone increases blood sugar by stimulating the liver?✔✔Glucagon
Which hormone promotes water retention in the kidneys?✔✔Antidiuretic hormone (ADH)
Which gland produces melatonin to regulate sleep cycles?✔✔Pineal gland
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Which hormone stimulates growth and protein synthesis?✔✔Growth hormone
Which organ is responsible for producing bile to aid in digestion?✔✔Liver
What is the basic structural and functional unit of the kidney?✔✔Nephron
Which type of muscle is involuntary and found in hollow organs?✔✔Smooth muscle
Which bone is the largest in the human body?✔✔Femur
Which chamber of the heart pumps oxygenated blood to the body?✔✔Left ventricle
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