NBDHE Anatomy and Physiology Test Questions and Answers Fully Solved 100%

17. Which of the following is a function of myelin? a. Increases the speed of nerve conduction b. Transmit impulses away from the spinal cord or brain c. Transmit impulses to the spinal cord or brain d. Provides impulses toward the cell body - a. Increases the speed of nerve conduction Myelin is a fatty substance around axons that provides insulation. This then increases the speed of nerve conduction. A client presents for a dental hygiene appointment. On review of the medical history, the client reports that he frequently experiences dyspnea. This means that he is experiencing a. frequent urination. b. muscle fatigue. c. peripheral edema. d. shortness of breath. - d. shortness of breath. Orthopnea is shortness of breath while in a reclined position. Both of these can be a symptom of heart failure. A dental hygiene client states on his medical history that he is experiencing polyuria and polydipsia. Which of the following hormones could be at decreased levels for this client? a. ADH b. Gonadotropin c. Prolactind. TSH - a. ADH Antidiuretic hormone (ADH) influences the reabsorption of water by the kidneys, thus resulting in less water in the urine. Decreased levels of ADH would cause an increase of water in the urine and thirst by the patient. Aldosterone is a mineralocorticoid that functions to a. support sodium homeostasis of the blood. b. breakdown proteins into amino acids. c. give male characteristics. d. increase the release of calcium in the blood. - a. support sodium homeostasis of the blood. main mineralocorticoid in humans. It is secreted from the outer zone of the adrenal cortex. All of the following describe a steroid hormone EXCEPT a. a mobile receptor in nucleus. b. chemical structure is made up of lipids. c. response time is 1 hour to several days. d. stored in secretory vesicles before release. - d. stored in secretory vesicles before release.