HEALTHCARE BSC2347 Module 05 Midterm Exam | Test Submission | Attempt Score 48 out of 50 points

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Course MA279/BSC2347 Human Anatomy and Physiology II - Online - 2018 Summer Quarter Which of the following is true of cellular immunity? Cytotoxic T cells are produced : B lymphocy... tes are involved Antibodies are produced Cytotoxic T cells are produced Only occurs in the lymph nodes of the body • Question 2 1 out of 1 points Which factor will NOT directly affect stroke volume? Respiration rate : Respiration rate Strength of cardiac muscle contraction High blood pressure Amount of blood the ventricles fill up with • Question 3 1 out of 1 points The thoracic and pulmonary volumes both have the ability to increase. True : True False • Question 4 0 out of 1 points Only arteries undergo vasoconstriction and vasodilation. True : True False • Question 5 1 out of 1 points Stroke volume is the measure of: The amount of blood that is ejected from a ventricle with each contraction. : The amount of blood that fills up a ventricle prior to contraction. The amount of blood that is ejected from a ventricle with each contraction. The amount of blood that is ejected from a ventricle in one minute. The amount of blood that fills up an atrium prior to contraction. • Question 6 1 out of 1 points Which of the following is true of thrombocytopenia? It can lead to abnormal long bleeding times. : It can lead to abnormal long bleeding times. It results in an increase within the hemostasis process. Commonly is caused by a lack of iron in the body. It is only a concern in older individuals. • Question 7 1 out of 1 points What statement is true of capillaries? They allow for nutrient and gas exchange within the body : They are found only in selected areas of the body They allow for nutrient and gas exchange within the body They have very a thick layer of smooth muscle surrounding them. They carry oxygenated blood out to the body • Question 8 1 out of 1 points Which of the following is true of polycythemia? It can be caused by cancer of the bone marrow. : It is a condition where there are too few erythrocytes. It can be caused by cancer of the bone marrow. More commonly seen in females. It is a condition where there are too many leukocytes. • Question 9 1 out of 1 points Coagulation is the final step in the hemostasis process. True : True False • Question 10 1 out of 1 points Antibodies are specific to one type of epitope. True : True False • Question 11 1 out of 1 points The right atrium: Receives blood from the body circuit : Pumps blood to the pulmonary circuit Pumps blood to the body circuit Receives blood from the pulmonary circuit Receives blood from the body circuit • Question 12 1 out of 1 points Which of the following is a role of the nasal cavity? Filter and clean incoming air : Gas exchange Filter and clean incoming air Dry and warm incoming air Concentrate the oxygen of incoming air • Question 13 1 out of 1 points Which portion of the EKG wave pertains to the atria undergoing depolarization? P wave : P wave QRS complex T wave S wave • Question 14 1 out of 1 points The exposure rate of a pathogen determines the effectiveness of innate defenses. False : True False • Question 15 1 out of 1 points Which type of humoral immunity is generated when an individual receives an infection from another person? Active natural humoral immunity : Active natural humoral immunity Passive natural humoral immunity Active acquired humoral immunity Passive acquired humoral immunity • Question 16 1 out of 1 points The pulmonary arteries contain deoxygenated blood. True : True False • Question 17 1 out of 1 points Humoral immunity involves the production of antibodies that will attack any bacteria or virus. False : True False • Question 18 1 out of 1 points Which type of plasma protein plays a role within maintaining plasma osmotic pressure, blood pressure and is the most numerous? Albumin : Globins Albumin Fibrinogen Elastin • Question 19 1 out of 1 points The primary role of the smooth surrounding the bronchi is to provide structural support. False : True False • Question 20 1 out of 1 points The trachealis muscle is located on the posterior aspect of the trachea, facing the esophagus. True : True False • Question 21 1 out of 1 points What is true of gas exchange within the lungs? Occurs at the type I alveolar cells : Occurs in the bronchioles and alveolar sacs Occurs at the type I alveolar cells Occurs at the type II alveolar cells It can occur all along the respiratory tree. • Question 22 1 out of 1 points Which of the following is true of the pleura of the lungs? The pleural cavity allows the lungs to expand and contract without friction. : They are solely responsible for facilitating ventilation. It is composed of four layers. The pleural cavity allows the lungs to expand and contract without friction. The pleura covers the internal surfaces of the lungs too. • Question 23 1 out of 1 points Increased heart rate will increase the overall cardiac output. True : True False • Question 24 1 out of 1 points Which of the following is true of veins? They start forming after blood travels through a capillary bed : They contain two-way valves The vena cava is the smallest vein in the body They typically carry oxygenated blood They start forming after blood travels through a capillary bed • Question 25 1 out of 1 points Which portion of the cardiac conduction system controls the rate at which the heart contracts? SA node : AV node SA node Purkinje fibers Myocaridum • Question 26 1 out of 1 points The pharynx assists in moistening and humidifying inhaled air? False : True False • Question 27 1 out of 1 points Which statement about the lungs and bronchi is true? The left lung has 2 lobes. : The right lung has 4 lobes. The left lung has 2 lobes. The right secondary bronchi has two branches. The left secondary bronchi has three branches. • Question 28 1 out of 1 points The left ventricle: Pumps blood to the body circuit : Pumps blood to the pulmonary circuit Pumps blood to the body circuit Receives blood from the pulmonary circuit Receives blood from the body circuit • Question 29 1 out of 1 points Which of the following is true of the hemostasis process? Fibrin is an insoluble protein thread that will cross link to the platelets together. : Hemoglobin activates fibrinogen to fibrin. Fibrin is an insoluble protein thread that will cross link to the platelets together. Vitamin C is needed for the hemostasis process to be complete. Only the intrinisic pathway will convert prothrombin to the active form of thrombin. • Question 30 1 out of 1 points Which of the following is true regarding the larynx? The vestibular folds assist in closing the glottis to prevent food and water entering the trachea. : The vestibular folds assist in closing the glottis to prevent food and water entering the trachea. The vocal folds (cords) allow food and water to flow through them when open. The epiglottis controls when food and water can enter the trachea. The larynx is located inferior to the trachea. • Question 31 1 out of 1 points Anemia is classified and defined as the body being iron deficient. False : True False • Question 32 1 out of 1 points What is secreted by the alveoli cells that prevent the lungs from collapsing between each breath by reducing surface tension? Surfactant : Surfactant Mucous Pulmonary fluid Water • Question 33 1 out of 1 points The bronchial tree allows for passage of air and gasses to reach the alveolar sacs where gas exchange occurs. True : True False • Question 34 1 out of 1 points Arterioles are the smallest form of an artery and is where gas exchange occurs. False : True False • Question 35 1 out of 1 points Which portion of the EKG wave pertains ventricles contracting during the cardiac cycle? QRS complex : P wave QRS complex T wave S wave • Question 36 1 out of 1 points Which of the following is NOT a benefit to the inflammatory process? Initiates the production of T-cytotoxic cells : It helps prevent the spread of pathogens. It helps initiate the repair process. Acts as an alarm for the adaptive immune system Initiates the production of T-cytotoxic cells • Question 37 1 out of 1 points Which of the following is the most numerous type of leukocyte? Neutrophil : Neutrophil Basophil Eosinophil Lymphocyte • Question 38 1 out of 1 points Which of the following choices is the correct pathway of the cardiac conduction system? SA node – AV node – Bundle of His – Right/Left bundle branches – Purkinje fibers : SA node – AV node – Bundle of His – Right/Left bundle branches – Purkinje fibers AV node – Bundle of His – Right/Left bundle branches – Purkinje fibers SA node – AV node – Bundle of His – Purkinje fibers – Right/Left bundle branches Bundle of His – AV node - SA node – Purkinje fibers – Right/Left bundle branches • Question 39 1 out of 1 points Which of the following is true of the intercalated discs? They allow cardiac muscle cells to share nutrients and electrical impulses. : There are found in smooth muscle and cardiac muscle. They are found only in the SA node cells. They allow cardiac muscle cells to share nutrients and electrical impulses. They are the contractile filaments of the cardiac muscle cells. • Question 40 1 out of 1 points Type O blood is the universal recipient blood type. False : True False • Question 41 1 out of 1 points Which anatomical structure ensures the heart valves only open and close in one direction? Chordae tendinae : Cusps Trabeculae carneae Chordae tendinae Epicardium • Question 42 1 out of 1 points T Helper cells are involved in cellular and humoral immunity activation. True : True False • Question 43 1 out of 1 points Which of the following is true of the trachea? Its lumen is lined with cilia. : It has over 30 supportive cartilage rings. Its lumen is lined with cilia. The respiratory cilia within the lumen move the mucus downward, toward the lungs. The trachea is posterior to the esophagus. • Question 44 1 out of 1 points Cardiac output is the amount of blood ejected from both ventricles with each contraction. False : True False • Question 45 1 out of 1 points For inspiration to occur, intrapulmonary pressure must be higher than atmospheric pressure? False : True False • Question 46 1 out of 1 points For expiration to occur, the intrapulmonary pressure has to: Increase compared to atmospheric air pressure : Increase compared to atmospheric air pressure Decrease compared to atmospheric air pressure • Question 47 1 out of 1 points An abnormal clot formation within a blood vessel is referred to as: Thrombi : Emboli Thrombi Hemostasis Sclerosis • Question 48 1 out of 1 points Which of the following is true regarding the heart valves? The Lub sound of the heart is produced when the AV valves close. c. The right AV valve has only two cusps. : The heart contains 5 heart valves. The left AV valve is also called the pulmonary valve. The Lub sound of the heart is produced when the AV valves close. c. The right AV valve has only two cusps. • Question 49 0 out of 1 points As the inspiratory muscles contract, the thoracic volume increases leading to an increase of pulmonary volume, which increases the intrapulmonary pressure. True : True False • Question 50 1 out of 1 points Oxygen and carbon dioxide gas exchange in the lungs occurs due to: Diffusion : Active transport Diffusion Osmosis Facilitated transport [Show More]

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