RMA Practice Exam
Body activities such as breathing, circulation, and heartbeat are regulated by the - Answer- B. Autonomic nervous system Which gas is brought into the body, and which is eliminated by the respiratory system? - Answer- D. Oxygen, carbon dioxide The muscular tissue of the heart is called the - Answer- C. Myocardium Blood enters the right atrium of the heart from the - Answer- B. Vena cava The disorder characterized by degeneration of the myelin sheath is - Answer- A. Multiple sclerosis The functional, microscopic filtration unit of the kidney is the - Answer- B. Nephron The testes produce - Answer- D. Both A and B. A - Sperm; B - Testosterone The amount of circulating blood in the body of an average adult is about - Answer- D. 6 liters The main function of white blood cells is to - Answer- B. Defend the body against invading bacteria and viruses The process that stops bleeding is called - Answer- B. Hemostasis The spinal cavity contains the - Answer- C. Spinal cord Air is brought into the lungs by way of the - Answer- C. Trachea The longest and strongest bone of the skeleton is the - Answer- A. Femur The dome-shaped muscle that separates the thoracic cavity from the abdominal cavity is the - Answer- C. Diaphragm Which of the following organs serves as a reservoir for blood? - Answer- D. Spleen The skin performs all of the following functions EXCEPT - Answer- A. Nitrogen-containing waste excretion The vocal cards are located in the - Answer- B. Larynx Otitis media is an inflammatory condition of the - Answer- A. Ear
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