NURS 106 Quiz #3 Practice

1 1) These vessels may be continuous or fenestrated. A) arteries B) arterioles C) capillaries D) venules E) veins 2) Blood pressure increases with all of the following except increased A) cardiac output. B) peripheral resistance. C) blood volume. D) parasympathetic innervation. E) force of cardiac contraction. 3) Each of the following will cause an increase in blood pressure except A) increased levels of aldosterone. B) increased levels of angiotensin II. C) increased blood volume. D) increased levels of ANP (atrial natriuretic peptide). E) increased levels of ADH (antidiuretic hormone). 4) Increased levels of carbon dioxide in the blood will result in decreased A) parasympathetic stimulation of the heart. B) cardiac output. C) blood flow to the lungs. D) heart rate. E) sympathetic stimulation of the heart. 5) Pulmonary arteries carry blood to the A) right atrium. B) left atrium. C) lungs. D) aorta. E) systemic circuit. 6) Branches off the aortic arch include the A) brachiocephalic trunk. B) left subclavian artery. 2 C) left common carotid artery. D) left subclavian artery and left common carotid artery. E) brachiocephalic trunk, left subclavian artery, and left common carotid artery. 7) At the knee, the femoral artery becomes the ________ artery. A) iliac B) deep femoral C) popliteal D) tibial E) peroneal 8) The superior phrenic artery supplies blood to the A) lungs. B) heart. C) diaphragm. D) pharynx. E) pancreas 9) Which of the following would increase vascular resistance? A) increased vessel length and increased vessel luminal diameter B) increased vessel luminal diameter and turbulence C) increased vessel luminal diameter D) increased vessel length and turbulence E) increased vessel length, increased luminal diameter, and turbulence 10) Blood pressure is determined by A) measuring the size of the pulse. B) listening carefully to the pulse. C) estimating the pressure needed to close off an artery with an external pressure cuff. D) estimating the degree of turbulence in a partly closed vessel. E) measuring the force of contraction of the left ventricle. 11) As blood travels from arteries to veins, A) pressure builds. B) pressure drops. C) flow becomes turbulent. D) viscosity increases. E) diameter of the blood vessels gets progressively smaller. 3 12) The lymphatic system is composed of all of the following except A) lymphatic vessels. B) the vena cava. C) the spleen. D) lymph nodes. E) lymph. 13) If the thymus shrank and stopped working, we would expect to see an immediate decrease in the number of A) B lymphocytes. B) NK cells. C) T cells. D) neutrophils. E) red blood cells. 14) The cells responsible for humoral immunity are the ________ cells. A) NK B) B C) helper T D) cytotoxic T E) suppressor T 15) Each of the following is a physical barrier to infection except A) body hair. B) epithelium. C) secretions. D) complement. E) basement membranes. 16) The first line of cellular defense against pathogens are the A) T cells. B) B cells. C) NK cells. D) phagocytes. E) plasma cells. 17) Immunoglobulins that attach to and sensitize mast cells and basophils are A) IgA. 4 B) IgD. C) IgE. D) IgG. E) IgM. 18) Which of the following is not a secondary lymphoid tissue or organ? A) spleen B) tonsils C) MALT D) thymus E) lymph nodes 19) Lymphatic vessels begin in peripheral tissues and ultimately drain into A) veins. B) peripheral capillary beds. C) arteries. D) the kidneys. E) arterioles. 20) The respiratory epithelium of the conducting airways consists of A) pseudostratified ciliated columnar epithelium. B) moist cuboidal epithelium. C) simple squamous epithelium. D) ciliated squamous epithelium. E) stratified squamous epithelium. 21) Functions of the nasal cavity include all of the following except A) filtering the air. B) warming the air. C) humidifying the air. D) housing tonsils. E) housing olfactory receptors 22) The superior region of the pharynx is called the A) nasal cavity. B) nasopharynx. C) oropharynx. D) laryngopharynx. 5 E) superior nasal conchae. 23) Which bone does not form part of the lateral or superior walls of the nasal cavity? A) maxilla B) mandible C) nasal D) ethmoid E) sphenoid 24) The thyroid cartilage is also called the A) vestibular fold. B) vocal cord. C) laryngeal prominence. D) Adam's apple. E) laryngeal prominence and Adam's apple. 25) The following is a list of some airways. What is the order in which air passes through them? 1. lobar bronchus 2. bronchioles 3. alveolar ducts 4. primary bronchus 5. respiratory bronchiole 6. alveoli 7. terminal bronchiole A) 4, 1, 2, 7, 5, 3, 6 B) 4, 1, 2, 5, 7, 3, 6 C) 1, 4, 2, 5, 7, 3, 6 D) 1, 4, 2, 7, 5, 3, 6 E) 2, 4, 1, 7, 5, 3, 6 26) When there is no air movement, the relationship between the intrapulmonary and atmospheric pressure is that A) they are equal. B) intrapulmonary pressure is greater than atmospheric. C) atmospheric pressure is less than intrapulmonary. D) atmospheric pressure is more than intrapulmonary. E) intrapulmonary pressure is less than atmospheric. 6 27) ________ is the amount of air that moves into the respiratory system during a single respiratory cycle. A) Residual volume B) Expiratory reserve volume C) Inspiratory reserve volume D) Tidal volume E) Inspiratory capacity 28) Boyle's law of gases states that A) the pressure and volume of a gas are equal. B) as the temperature goes up, the pressure goes up. C) the total gas pressure is equal to the sum of the partial pressures. D) the concentration of dissolved gas is proportional to its partial pressure. E) if the volume goes up, the pressure goes down. 29) If PO2 increases A) saturation goes down and hemoglobin gives away oxygen. B) hemoglobin stores oxygen. C) hemoglobin gives away oxygen. D) saturation goes up. E) saturation goes up and hemoglobin stores oxygen. 30) Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to A) changes in PCO2. B) changes in PO2. C) changes in pH. D) changes in blood pressure. E) changes in PCO2, PO2, and pH. 7 Answer Key: 1) C 2) D 3) D 4) A 5) C 6) E 7) C 8) C 9) D 10) C 11) B 12) B 13) C 14) B 15) D 16) D 17) C 18) D 19) A 20) A 21) D 22) B 23) B 24) E 25) A 26) A 27) D 28) E 29) E 30) E