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HESI A2 - Anatomy & Physiology (Practice Test) Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
Which type of blood vessel has valves to prevent backflow?✔✔Vein
What is the main function of the lymphatic system?✔✔Return fluid to blood and help fight infection
Which part of the skeletal system protects the brain?✔✔Cranium
What is the basic functional unit of a muscle fiber?✔✔Sarcomere
Which organ stores bile before it is released into the small intestine?✔✔Gallbladder 1 / 3
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What is the main function of hemoglobin?✔✔Carry oxygen in red blood cells
Which bone is found in the upper arm?✔✔Humerus
What is the process of producing new red blood cells called?✔✔Erythropoiesis
Which type of joint allows only back-and-forth motion, such as the elbow?✔✔Hinge joint
What is the main function of the pancreas in digestion?✔✔Produce digestive enzymes and bicarbonate
Which organ produces insulin?✔✔Pancreas 2 / 3
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What is the term for the space between two neurons where neurotransmitters are released?✔✔Synapse
Which blood vessel carries oxygenated blood from the lungs to the heart?✔✔Pulmonary vein
What is the functional unit of the lung?✔✔Alveolus
Which part of the nephron is responsible for filtration of blood?✔✔Glomerulus
What is the tough outer layer of the meninges called?✔✔Dura mater
What is the basic functional unit of the kidney?✔✔Nephron
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