Straighterline BIO 202 A&P2 - exam 1

A&P 2 Exam 1 Question 1 Incorrect 0.00 points out of 1.00 Flag question Question text A person with O blood type has which of the following? Select one: a. A antigens, and B antibodies b. B antigens, and A antibodies c. No antigens, and A and B antibodies d. A and B antigens, and no antibodies Feedback The correct answer is: No antigens, and A and B antibodies Question 2 Correct 1.00 points out of 1.00 Flag question Question text A pituitary tumor that causes chronic secretion of TSH would results in which lab report? Select one: a. Low TRH, high TSH, low T3 and T4 b. High TRH, high TSH, high T3 and T4 c. High TRH, low TSH, low T3 and T4 d. Low TRH, high TSH, high T3 and T4 e. Low TRH, low TSH, low T3 and T4 Feedback The correct answer is: Low TRH, high TSH, high T3 and T4 Question 3 Incorrect 0.00 points out of 1.00 Remove flag Question text After the blood circulates through the body, it returns to the of the heart. Select one: a. Left atrium b. Left ventricle c. Right ventricle d. Right atrium Feedback The correct answer is: Right atrium Question 4 Incorrect 0.00 points out of 1.00 Flag question Question text All the cells of the heart contract if even one of them contracts due to the function of . Select one: a. Gap junctions b. Tight junctions c. Adherens junctions d. Desmosomes Feedback The correct answer is: Gap junctions Question 5 Correct 1.00 points out of 1.00 Flag question Question text As you take this exam, the majority of your blood is in . Select one: a. Venules and veins b. Arteries and arterioles c. Cardiac and pulmonary blood vessels d. Capillaries Feedback The correct answer is: Venules and veins Question 6 Correct 1.00 points out of 1.00 Flag question Question text At what point in the ECG tracing is ventricular volume the smallest? Select one: a. During the T-wave b. Between the T- and P-waves c. During the QRS wave d. Between the QRS and T-waves Feedback The correct answer is: During the T-wave Question 7 Correct 1.00 points out of 1.00 Flag question Question text Blood cells are made Select one: a. In the heart b. In the kidneys c. In the liver d. In bone marrow Feedback The correct answer is: In bone marrow Question 8 Correct 1.00 points out of 1.00 Remove flag Question text Diastolic blood pressure is the pressure in an artery and the result of ventricular . Select one: a. Highest; relaxation b. Lowest; relaxation c. Highest; contraction d. Lowest; contraction Feedback The correct answer is: Lowest; relaxation Question 9 Incorrect 0.00 points out of 1.00 Flag question Question text Epinephrine is produced where? Select one: a. Hypothalamus b. Anterior pituitary c. Adrenal medulla d. Adrenal cortex Feedback The correct answer is: Adrenal medulla Question 10 Correct 1.00 points out of 1.00 Flag question Question text High TRH, High TSH, and low T4 levels suggest dysfunction of . Select one: a. Negative feedback b. Hypothalamus c. Thyroid gland d. Pituitary gland Feedback The correct answer is: Thyroid gland Question 11 Correct 1.00 points out of 1.00 Flag question Question text How does blood pressure compare in the capillaries versus the major arteries of the body? Select one: a. Blood pressure in the capillaries is lower than in the major arteries. b. Blood pressure in the capillaries is the same as in the major arteries. c. Blood pressure in the capillaries is higher than in the major arteries. d. There is no way to determine this. Feedback The correct answer is: Blood pressure in the capillaries is lower than in the major arteries. Question 12 Correct 1.00 points out of 1.00 Flag question Question text How would low plasma protein levels affect oncotic pressure (OPc) in capillaries? Select one: a. OPc levels would be low b. c. OPc levels would be unaffected d. OPc levels would be high Feedback The correct answer is: OPc levels would be low Question 13 Correct 1.00 points out of 1.00 Flag question Question text If the 800mg of a substance is consumed, and the half-life of the substance is 3 hours, how much of that substance is still present in the system after 12 hours? Select one: a. 400mg b. 200mg c. 50mg d. 1g Feedback The correct answer is: 50mg Question 14 Incorrect 0.00 points out of 1.00 Flag question Question text Lack of a P-wave on an ECG with an otherwise normal tracing and heart rate of 40 beats per minute would indicate . Select one: a. The AV node is pacing heart rate b. Incomplete repolarization of the ventricles c. Heart block d. A recent heart attack Feedback The correct answer is: The AV node is pacing heart rate Question 15 Correct 1.00 points out of 1.00 Flag question Question text Levels of which hormone will rise when blood volume is too high? Select one: a. Osteocalcin b. Erythropoietin c. Renin d. Atrial natriuretic peptide Feedback The correct answer is: Atrial natriuretic peptide Question 16 Correct 1.00 points out of 1.00 Flag question Question text Net filtration pressure is on the arteriolar side of a capillary bed and on its venular side. Select one: a. Negative, more negative b. Positive, negative c. Negative, positive d. Positive, less positive Feedback The correct answer is: Positive, negative Question 17 Correct 1.00 points out of 1.00 Flag question Question text Polyuria is a common sign of which disease/disorder? Select one: a. Diabetes mellitus b. Acromegaly c. Pituitary dwarfism d. Hyperthyroidism Question text The tunica externa of blood vessels is mostly . Select one: a. Collagen fibers b. Elastic fibers c. Smooth muscle d. Endothelium Question text The volume of blood ejected by the right ventricle is the volume of blood ejected by the left ventricle during the same heart beat? Select one: a. variable, may be less, greater, or the same b. greater than c. less than d. the same as Question text What are ‘tropic’ hormones? Select one: a. They are the final ‘effector’ hormones in a pathway (e.g., T3 in the thyroid hormone pathway) b. They are made only when you are on vacation on exotic islands c. They regulate the secretory action of other endocrine glands d. They are the mediators of negative feedback Question 21 Incorrect 0.00 points out of 1.00 Flag question Question text What can cause a person to produce red blood cells that are reduced in size and color? Select one: a. A lack of vitamin B12 b. Moving to a lower altitude; like from the mountains to sea level c. A lack of iron d. All of the above Feedback The correct answer is: A lack of iron Question 22 Incorrect 0.00 points out of 1.00 Flag question Question text What does the T wave on an ECG represent? Select one: a. Atrial depolarization b. Atrial repolarization c. Ventricle repolarization d. Ventricle depolarization Feedback The correct answer is: Ventricle repolarization Question 23 Correct 1.00 points out of 1.00 Flag question Question text What is a possible cause of anemia? Select one: a. Low levels of iron b. Chronic bleeding c. Hemolysis d. All of these Feedback The correct answer is: All of these Question 24 Incorrect 0.00 points out of 1.00 Flag question Question text What is laminar flow? Select one: a. The regulated direction of blood flow through a shunt that bypasses the capillary bed b. Blood flow that exhibits different rates of movement in a vessel c. The volume of blood moving against gravity during one cardiac output cycle d. Any leakage of blood moving back through a valve Feedback The correct answer is: Blood flow that exhibits different rates of movement in a vessel Question 25 Incorrect 0.00 points out of 1.00 Flag question Question text What is stroke volume? Select one: a. The volume of blood required to completely fill the atria and ventricles b. The volume of blood pumped by one ventricle per heart beat c. The volume of blood required to completely fill both heart ventricles d. The volume of blood pumped by one atrium per minute Feedback The correct answer is: The volume of blood pumped by one ventricle per heart beat Question 26 Incorrect 0.00 points out of 1.00 Flag question Question text What is the first step in hemostasis when a blood vessel is damaged? Select one: a. Formation of fibrin clot b. Vasospasm c. Release of cytoplasmic granules d. Platelet adhesion Feedback The correct answer is: Vasospasm Question 27 Correct 1.00 points out of 1.00 Flag question Question text What is the liquid portion of the blood called? Select one: a. White blood cells and platelets b. Plasma c. None of the above d. Erythrocytes Feedback The correct answer is: Plasma Question 28 Correct 1.00 points out of 1.00 Flag question Question text What occurs during the plateau phase of a cardiac action potential? Select one: a. Movement of calcium and potassium is closely balanced b. All influx and efflux of cations stops c. Influx of calcium is inhibited d. Efflux of potassium is inhibited Feedback The correct answer is: Movement of calcium and potassium is closely balanced Question 29 Incorrect 0.00 points out of 1.00 Flag question Question text What occurs when erythropoietin is released by the kidneys? Select one: a. None of the above b. Erythropoietin is taken up by adipose tissue c. Erythropoietin stimulates gastrin release by the stomach d. Erythropoietin is converted into angiotensin 1 Feedback The correct answer is: None of the above Question 30 Correct 1.00 points out of 1.00 Flag question Question text What path does depolarization follow in the heart? Select one: a. AV node-AV bundle-SA node-Internodal pathway-Bundle branches-Purkinje fibers b. Purkinje fibers-Internodal pathway-AV node-SA node-AV bundle-Bundle branches c. SA node-Internodal pathway-AV node-AV bundle-Bundle branches-Purkinje fibers d. Internodal pathway-SA node-Purkinje fibers-AV node-Bundle branches-AV bundle Feedback The correct answer is: SA node-Internodal pathway-AV node-AV bundle-Bundle branches- Purkinje fibers Question 31 Incorrect 0.00 points out of 1.00 Flag question Question text When hematocrit levels are too low, the produces the hormone which stimulates the production of RBCs. Select one: a. Heart, ANP b. Kidneys, EPO c. Liver, albumin d. Bone marrow, adiponectin Feedback The correct answer is: Kidneys, EPO Question 32 Incorrect 0.00 points out of 1.00 Flag question Question text Which blood components can be called true cells because they always contain a nucleus? Select one: a. Platelets b. Erythrocytes c. Both erythrocytes and white blood cells d. White blood cells Feedback The correct answer is: White blood cells Question 33 Incorrect 0.00 points out of 1.00 Flag question Question text Which blood vessels provide the most resistance to blood flow and are called 'resistance vessels'? Select one: a. capillaries b. arterioles c. venules d. arteries Feedback The correct answer is: arterioles Question 34 Correct 1.00 points out of 1.00 Flag question Question text Which characteristics define ventricular ejection? Select one: a. Pressure in atria increases, atria contract, AV valves are opened by the flow of blood b. Pressure in ventricles drop, ventricles relax, semilunar valves are forced close by the backflow of blood c. Pressure in ventricles increases, ventricles contract, semilunar valves are opened by the flow of blood into the aorta and pulmonary trunk d. Pressure in atria drop, atria contract, AV valves are forced closed by the backflow of blood Feedback The correct answer is: Pressure in ventricles increases, ventricles contract, semilunar valves are opened by the flow of blood into the aorta and pulmonary trunk Question 35 Incorrect 0.00 points out of 1.00 Flag question Question text Which hormone increases your body’s use of fats, increases protein synthesis, and conserves glucose? Select one: a. LH b. GH c. TSH d. ACTH Feedback The correct answer is: GH Question 36 Incorrect 0.00 points out of 1.00 Flag question Question text Which is NOT true of anemia? Select one: a. Accompanied by fatigue, pallor, shortness of breath, and chills b. A life threatening disease c. There are genetic and environmental causes of anemia d. Blood has abnormally low O2-carrying capacity Feedback The correct answer is: A life threatening disease Question 37 Incorrect 0.00 points out of 1.00 Flag question Question text Which of the following couple heart cells electrically, causing the heart to contract as a single unit. Select one: a. Tight junctions b. Desmosomes c. Gap junctions d. Adherens junctions Feedback The correct answer is: Gap junctions Question 38 Incorrect 0.00 points out of 1.00 Flag question Question text Which of the following does not help to increase blood pressure? Select one: a. Atrial natriuretic peptide (ANP) b. Aldosterone c. Antidiuretic hormone (ADH) d. Renin Feedback The correct answer is: Atrial natriuretic peptide (ANP) Question 39 Incorrect 0.00 points out of 1.00 Flag question Question text Which of the following is a normal hematocrit? Select one: a. 48% b. 38% c. 28% d. 58% Feedback The correct answer is: 48% Question 40 Correct 1.00 points out of 1.00 Flag question Question text Which of the following is an effect of baroreceptors? Select one: a. Increase of heart rate b. Increase blood pressure c. Lower blood pressure d. Decreased impulses to brain Feedback The correct answer is: Lower blood pressure Question 41 Correct 1.00 points out of 1.00 Flag question Question text Which of the following is considered the pacemaker of the heart? Select one: a. SA node b. AV Node c. Bundle of His d. Perkinje Fibers Feedback The correct answer is: SA node Question 42 Correct 1.00 points out of 1.00 Flag question Question text Which of the following is not a source of peripheral resistance? Select one: a. Capillary oncotic pressure b. Total vessel length c. Blood viscosity d. Blood vessel diameter Feedback The correct answer is: Capillary oncotic pressure Question 43 Correct 1.00 points out of 1.00 Flag question Question text Which of the following is true of lipid soluble hormones? Select one: a. Act only on plasma membrane receptors b. Cannot enter the target cells c. Act on intracellular receptors that directly regulate gene activity d. Coupled by G proteins to intracellular second messengers that mediate the target cell’s response Feedback The correct answer is: Act on intracellular receptors that directly regulate gene activity Question 44 Incorrect 0.00 points out of 1.00 Flag question Question text Which of the following represents ventricular repolarization on an ECG waveform? Select one: a. R-R interval b. T wave c. P wave d. QRS complex Feedback The correct answer is: T wave Question 45 Incorrect 0.00 points out of 1.00 Flag question Question text Which of the following statements is true? Select one: a. Capillaries are leaky and all the leaked fluid is used as sweat to keep us from overheating. b. Capillaries are leaky and most of the fluid is returned to the blood on the venous side; nearly all of the rest is taken up by the lymphatic system. c. Capillaries are leaky but all the fluid is returned to the blood on the venous end of the capillaries. Feedback The correct answer is: Capillaries are leaky and most of the fluid is returned to the blood on the venous side; nearly all of the rest is taken up by the lymphatic system. Question 46 Correct 1.00 points out of 1.00 Flag question Question text Question Error - point given automatically Select one: a. Question Error - point given automatically b. Question Error - point given automatically c. Question Error - point given automatically d. Question Error - point given automatically Feedback The correct answers are: Question Error - point given automatically, Question Error - point given automatically, Question Error - point given automatically, Question Error - point given automatically Question 47 Incorrect 0.00 points out of 1.00 Flag question Question text The buffy coat of a spun/centrifuged blood sample contains . Select one: a. Leukocytes b. Platelets c. Albumin d. Erythrocytes Feedback The correct answer is: Leukocytes Question 48 Incorrect 0.00 points out of 1.00 Flag question Question text Which statement describes the posterior pituitary? Select one: a. This lobe releases the largest number of pituitary hormones b. This lobe contains axon terminals c. The hormones produced in this structure have antagonizing roles relative to each other d. The hormones released by this lobe directly target the anterior pituitary Feedback The correct answer is: This lobe contains axon terminals Question 49 Incorrect 0.00 points out of 1.00 Flag question Question text Which type of blood vessel helps maintain blood pressure between heart beats? Select one: a. arterioles b. veins c. muscular arteries d. elastic arteries Feedback The correct answer is: elastic arteries Question 50 Correct 1.00 points out of 1.00 Flag question Question text Which type of leukocyte is the second most abundant? Select one: a. Neutrophils b. Basophils c. Monocytes d. Lymphocytes Feedback The correct answer is: Lymphocytes