(WGU D313) SCIE 1012 Anatomy & Physiology II Final Assessment Guide Q & S 2024
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(WGU D313) SCIE 1012 Anatomy & Physiology II Final Assessment Guide Q & S 2024(WGU D313) SCIE 1012 Anatomy & Physiology II Final Assessment Guide Q & S 2024(WGU D313) SCIE 1012 Anatomy & Physiology II Final Assessment Guide Q & S 2024
D313 SCIE 1012 Anatomy & Physiology II Final Assessment Guid e Q & S 2024 1. Which of the following hormones is primarily involved in the regulation of blood calcium levels? A. Insulin B. Thyroxine C. Parathyroid hormone D. Cortisol Answer : C. Parathyroid hormone Rationale: Parathyroid hormone (PTH) is released by the parathyroid glands and plays a critical role in maintaining calcium homeostasis by increasi ng blood calcium levels. 2. The bundle of His is an integral part of which human body system? A. Respiratory system B. Digestive system C. Cardiovascular system D. Nervous system Answer : C. Cardiovascular system Rationale: The bundle of His is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches. 3. What is the primary function of the lymphatic system? A. Dig estion of fats B. Regulation of body temperature C. Transportation of nutrients D. Maintenance of fluid balance Answer : D. Maintenance of fluid balance Rationale: The lymphatic system helps maintain fluid balance within the body by returning excess tissue fluid to the bloodstream. 4. During inhalation, which of the following occurs? A. The diaphragm relaxes and moves upward. B. The diaphragm con tracts and moves downward. C. The volume of the thoracic cavity decreases. D. Air pressure within the alveoli increases. Answer : B. The diaphragm contracts and moves downward. Rationale: Inhalation is an active process during which the diaphrag m contracts, moves downward, and increases the volume of the thoracic cavity, allowing air to flow into the lungs. 5. Which part of the brain is responsible for regulating heart rate? A. Cerebrum B. Cerebellum C. Medulla oblongata D. Hypothala mus Answer : C. Medulla oblongata Rationale: The medulla oblongata contains the cardiac center which regulates the heart rate and force of contraction. 6. The filtration of blood in the kidney occurs at the: A. Glomerulus B. Proximal tubule C. Loop of Henle D. Distal tubule Answer : A. Glomerulus Rationale: The glomerulus is a network of capillaries located at the beginning of a nephron that performs the first step of filtering blood to form urine. 7. Which type of joint is character ized by free movement in multiple directions? A. Fibrous joint B. Cartilaginous joint C. Synovial joint D. Fixed joint Answer : C. Synovial joint
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