HESI Anatomy and Physiology (Latest Update 2021) (A Graded) Latest Questions and Complete Solutions

HESI Anatomy and Physiology (Latest Update 2021) (A Graded) Latest Questions and Complete Solutions 1. Why are skeletal muscles also called voluntary muscles? A. They are under conscious control. B. They are attached to the skeleton. C. They use ATP to energize contraction. D. They are striated in appearance. 2. All actions of the nervous system depend on the transmission of nerve impulses over which of the following? A. Neuroglia B. Efferent pathways C. Afferent pathways D. Neurons 3. Motor or neurons transmit nerve impulses away from the CNS. A. Afferent B. Efferent C. Central D. Peripheral 4. Jeffery has contracted bulbar poliomyelitis, and it has affected the medulla oblongata. The doctors warned the family that his condition is grave and death may be imminent. What functions of the medulla oblongata have warranted such a dire prognosis? A. The medulla oblongata contains vital centers that control heart action, blood vessel diameter, and respiration. B. The medulla oblongata contains neural connections of the reticular-activating system. C. The medulla oblongata contains the pineal gland, which controls the vital centers. D. The medulla oblongata contains the corpora quadrigemina, which controls the neural transmission of impulses along the spinal cord. 5. What are chemical messengers that control growth, differentiation, and the metabolism of specific target cells called? A. Hormones B. Neurons C. Glands D. Second messengers