Anatomy and Physiology Online Practice A Exam Questions And Answers

1. Which of the following glands is responsible for temperature regulation? A. Apocrine glands B. Sebaceous glands C. Serous glands D. Eccrine glands - ANS D 2. Which of the following is a function of the gallbladder? A. Production of bile B. Absorption of bile C. Storage of bile D. Elimination of bile - ANS C 3. The femur and the humerus belong to which of the following categories? A. Long bones B. Short bones C. Flat bones D. Irregular bones - ANS A 4. Which of the following is responsible for the regulation of body temperature? A. Cerebellum B. Pons C. Hypothalamus D. Parietal lobe - ANS C 5. Which of the following occurs due to the release of antidiuretic hormone? A. The renal tubules absorb less water. B. Urine becomes less concentrated. C. Fluid volume in the body increases. D. Insensible water loss increases. - ANS C 6. Which of the following statements is correct regarding parietal pleura? A. They adhere to the wall of the thoracic cavity surrounding the lungs. B. They adhere directly to each lung. C. They create a space between the lungs and the wall of the thoracic cavity. D. They are mucous membranes that contain ciliated epithelium. - ANS A 7. Which of the following body functions is stimulated by the somatic nervous system? A. Heart rate B. Breathing C. Sweating D. Skeletal muscle movement - ANS D 8. Which of the following actions is the stimulus for defecation? A. Stretching of the muscles of the rectum B. Peristalsis of the colon C. Relaxation of the internal anal sphincter D. Relaxation of the external anal sphincter - ANS A 9. Which of the following processes describes the transport of molecules from an area of greater concentration to an area of lesser concentration? A. Osmosis B. Diffusion C. Filtration D. Active transport - ANS B 10. Which of the following types of muscle tissue is under voluntary control? A. Smooth B. Cardiac C. Visceral D. Skeletal - ANS D 11. Which of the following parts of the brain regulates heart rate, respiratory rate, and blood pressure? A. Corpus callosum B. Basal ganglia C. Hypothalamus D. Medulla oblongata - ANS D 12. Which of the following is the function of surfactant in the alveoli of the lungs? A. Uptake of oxygen in the alveoli B. Prevention of alveoli collapse C. Removal of carbon dioxide in the alveoli D. Increase alveoli surface tension - ANS B 13. Which of the following structures contains collagen and elastin as major proteins? A. Epidermis B. Dermis C. Subcutaneous tissue D. Adipose tissue - ANS B 14. Which of the following actions take place during atrial systole? A. The cardiac muscle in the atrial wall contracts, forcing blood through the atrioventricular valves and into the ventricles. B. The atrioventricular valves close, and blood is forced out of the ventricles through the semilunar valve and into the arteries. C. The semilunar valves close when the ventricles relax. D. The atrioventricular valves abruptly close as the ventricles contract. - ANS A 15. Which of the following effects does atrial natriuretic hormone have on urine output? A. Increased urine volume B. Decreased urine volume C. Increased sodium reabsorption D. Increased potassium reabsorption - ANS A 16. Which of the following steps occurs first during the process of wound healing? A. Blood clots stop the blood loss at the injury site. B. Fiber-producing cells in dermis repair the damaged network of fibers. C. Fibroblast cells repair damaged tissue by collagen deposition. D. Blood capillaries increase the blood flow to the injured area. - ANS A 17. Which type of fluid makes up the largest distribution of total body water? A. Intracellular fluids B. Extracellular fluids C. Transcellular fluids D. Lymph - ANS A 18. Which of the following structure coils represents the location where immature sperm forms? A. Spermatic cord B. Vas deferens C. Seminiferous tubules D. Epididymis - ANS C 19. Which of the following body structures has the same amount of salt as an isotonic solution? A. Red blood cell B. Schwann cell C. Lymph node D. Phagocyte - ANS A