Hesi Entrance Exam A&P Practice Test 2022/2023 with 100% correct answer

What mineral is responsible for muscle contractions? Calcium Which of the the following locations would the urinary bladder and internal reproductive organs be found? Pelvic cavity 01:03 01:41 What separates the thoracic cavity from the abdominal cavity? Diaphragm A tissue examined under the microscope exhibits the following characteristics: cells found on internal surface of stomach, no extracellular matrix, cells tall and thin, no blood vessels in the tissue. What type of tissue is this? Epithelial Nerve tissue is composed of neuron and connective tissue cells that are referred to as which of the following? Neuroglia Which tissue serves as the framework of the body by providing support and structure for the organs? Connective What is the basic unit of life and the building block of tissues and organs? Cell Which type of cell division takes place in the gonads? Meiosis In what area of the body would you expect to find and especially thick stratum corneum? Heel of the foot What are the glands of the skin that produce a thin, watery secretion? Eccrine glands Skin aids in maintaining the calcium and phosphate levels of the body by participating in the production of which of the following? Vitamin D Which of the following are functions of the skeletal system? Support the body, hemopoiesis, provide protection 00:03 01:41 The orthopedic surgeon informs you that you have broken the middle region of the humerus. What is he describing? Diaphysis You have been given a sample of tissue that has open spaces partially filled by an assemblage of needlelike structures. What is the tissue? Spongy bone The only moveable bone in the skull is? Mandible Which mineral is responsible for regulating fluid in the body? Magnesium Why are the skeletal muscles also called voluntary muscles? They are under conscious control. All actions of the nervous system depend on the transmission of nerve impulses over ______. Neurons Motor or _____ neurons transmit nerve impulses away from the CNS. Efferent 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? The medulla oblongata contains vital centers that control heart action, blood vessel diameter, and respiration. What are chemical messengers that control growth, differentiation,and the metabolism of specific target cells called? Hormones Which of the following are tropic hormones? Somatotropin, follicle-stimulating hormone, thyroid-stimulating hormone. Which leukocytes are correctly matched with their function or description? Monocytes - become macrophages, lymphocytes - important in immune response, neurophils - phagocytize micro organisms. The heart has an intrinsic beat that is initiated by which of the following? Sinoatrial node Vasodilation and vasoconstriction result from which of the following ? Relaxation and contraction of the smooth muscle in the arterial wall. Which of the following is the blood vessels where exchanges take place between blood and the cells of the body Capillary What is the exchange of gases between the atmosphere and the blood through the alveoli called? External respiration In order for inhalation to occur, what must happen? Contraction of the diaphragm, which enlarges the chest cavity and draws air into the lungs. Most of the carbon dioxide in the blood does what? It is converted to bicarbonate ions. How does the trachea remain open like a hollow tube? Supporting cartilaginous rings keep it open. The stomach muscle churns and mixes the food, turning the mass into soupy substance called? Chyme What is the function of aldosterone? It conserves sodium in the body. All the nutrients that enter the hepatic portal vein are routed where for decontamination? Liver Which are the functional units of the kidney? Nephrons What are the two functions of the male and female sex organs? Production of gametes and production of hormones. In men, spermatozoa develop within the ________ of the testis Seminiferous tubules Testicular activity is under the control of which hormones? Both FSH and LH Which hormone initiates the preparation of the endometrium of the uterus for pregnancy? Estrogen During pregnancy, what organ produces the hormones that maintain the endometrium and prepare the breasts for milk production? Placenta What is the role of progesterone in the female reproductive system? Stimulates the development of the endometrium. What does the parathyroid hormone regulate? Calcium Where are the pressoreceptors and chemoreceptors (specialized sensory nerves that assist with the regulation of circulation and respiration) located? Carotid body You have been given a sample of tissue that has pillar shaped cells arranged tightly together. The tissue you have is: Columnar epithelium