HESI A2 Practice Test 2023 Questions with Correct Answers (100% Accurate)

Which structure in the brain is responsible for arousal and maintenance of consciousness? A. The Midbrain B.The Reticular Activating System C. The Diencephalon D. The Limbic System Correct Answer B. The Reticular Activating system The triceps reflex Correct Answer forces contraction of the triceps and extension of the arm Which cranial nerve is responsible for hearing and balance? A. CN III B. CN V C. CN VII D. CN XII Correct Answer C. CN VIII Which gland is responsible for the regulation of calcium levels? A. Parathyroid B. Pituitary C. Adrenal D. Pancreas Correct Answer A. Parathyroid Which hormone is predominantly produced during the luteal phase of the menstrual cycle? Correct Answer Progesterone The pancreas secretes what hormone in response to low blood glucose levels? A. Insulin B. Glucagon C. Somatostatin D. Amylase Correct Answer B. Glucagon Which layer of the heart contains striated muscle fibers for contraction of the heart? A. Pericardium B. Epicardium C. Endocardium