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HESI Admission Assessment Exam Review - 4th Edition Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What type of joint is found at the shoulder, allowing a wide range of motion?✔✔Ball and socket joint
What is the role of the alveoli in the respiratory system?✔✔To facilitate the exchange of oxygen and carbon dioxide
What is the basic structural and functional unit of the kidney?✔✔Nephron
Which system regulates the body's response to stress and controls hormones?✔✔Endocrine system
What is the function of platelets in the circulatory system?✔✔To assist in blood clotting and prevent bleeding 1 / 4
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What is the primary muscle involved in breathing?✔✔Diaphragm
What type of tissue connects muscles to bones?✔✔Tendons
What is the name of the fluid that surrounds and protects the brain and spinal cord?✔✔Cerebrospinal fluid
Which blood vessels carry oxygen-rich blood away from the heart?✔✔Arteries
What does the term “diffusion” mean in physiology?✔✔The movement of molecules from an area of higher concentration to lower concentration
What part of the brain controls balance and coordination?✔✔Cerebellum 2 / 4
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What is the largest organ of the human body?✔✔Skin
What role does the lymphatic system play in the body?✔✔It helps return fluid to the bloodstream and fights infections
What is the primary function of white blood cells?✔✔To defend the body against infection
What is the purpose of the epiglottis during swallowing?✔✔To prevent food from entering the trachea
What is the main function of the small intestine?✔✔To absorb nutrients from digested food
What hormone controls the sleep-wake cycle?✔✔Melatonin 3 / 4
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What type of muscle is found in the walls of hollow organs like the intestines?✔✔Smooth muscle
What is the primary function of the red bone marrow?✔✔To produce red blood cells
What structure prevents backflow of blood in veins?✔✔Valves
What is the role of the hypothalamus in the nervous system?✔✔To regulate body temperature, hunger, and thirst
What is the term for the process by which cells divide to create two identical daughter cells?✔✔Mitosis
What blood type is known as the universal donor?✔✔O negative
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