Question 1 of 39 2.6\/
\n2.6 Points
\nThe multiple functions of the muscular system are performed
\nby ______________type(s) of muscle:<\/p>\n
A.2<\/p>\n
B.3<\/p>\n
C.4<\/p>\n
D.1<\/p>\n
Question 2 of 39 2.6\/
\n2.6 Points
\nWhich of the following is NOT considered a fuel nutrient?<\/p>\n
A.carbohydrate
\n B.fat<\/p>\n
C.water<\/p>\n
D.protein<\/p>\n
Question 3 of 39 2.6\/
\n2.6 Points
\nThe layer of connective tissue surrounding the outside of
\nthe muscle is called:<\/p>\n
A.perimysium<\/p>\n
B.carbohydrate<\/p>\n
C.sarcomysium<\/p>\n
D.epimysium<\/p>\n
Question 4 of 39 2.6\/
\n2.6 Points
\nProtein can supply about 5 to 10% of the total energy needs
\nduring:<\/p>\n
A.sprinting activities<\/p>\n
B.prolonged exercise<\/p>\n
C.all types of exercise<\/p>\n
D.weightlifting<\/p>\n
Question 5 of 39 2.6\/
\n2.6 Points
\nThe two main components of the nervous system are:<\/p>\n
A.the autonomic nervous system and the
\nsomatic nervous system<\/p>\n
B.the brain and the spinal cord<\/p>\n
C.the central nervous system and the peripheral nervous system<\/p>\n
D.the efferent and afferent divisions of the
\nnervous system<\/p>\n
Question 6 of 39 2.6\/
\n2.6 Points
\nThe autonomic nervous system can be divided into two
\nfunctional and anatomical divisions called:<\/p>\n
A.sympathetic and unsympathetic<\/p>\n
B.sympathetic and parasympathetic<\/p>\n
C.afferent and efferent<\/p>\n
D.CNS and peripheral<\/p>\n
Question 7 of 39 2.6\/
\n2.6 Points
\nUsing an insulated, airtight chamber with walls containing
\ncopper tubing through which water is passed to assess total body energy
\nexpenditure is called:<\/p>\n
A.direct calorimetery<\/p>\n
B.indirect calorimetry<\/p>\n
C.open-circuit spirometry<\/p>\n
D.closed-circuit spirometry<\/p>\n
Question 8 of 39 2.6\/
\n2.6 Points
\nThe respiratory exchange ratio (RER) is defined as the ratio
\nbetween the:<\/p>\n
A.of CO2 produced and the amount of CO2
\nconsumed during metabolism<\/p>\n
B.amount of CO2 produced and the amount of
\nCO2 consumed during metabolism <\/p>\n
C.amount of CO2 released and the amount of O2 consumed during metabolism<\/p>\n
D.amount of O2 released and the amount of CO2
\nconsumed during metabolism<\/p>\n
Question 9 of 39 0.0\/
\n2.6 Points
\nThe primary function of the cardiovascular system is:<\/p>\n
A.thermoregulation<\/p>\n
B.immune function<\/p>\n
C.ensuring that there is adequate blood flow
\nthroughout the circulation to meet the metabolic demand <\/p>\n
D.maintenance of acid-base balance and overall body fluid balance<\/p>\n
Question 10 of 39 0.0\/
\n2.6 Points
\nThe heart’s main nutrient blood supply is provided via:<\/p>\n
A.the superior and inferior vena cavae<\/p>\n
B.the right and left coronary arteries<\/p>\n
C.the coronary veins<\/p>\n
D.the pulmonary arteries<\/p>\n
Question 11 of 39 2.6\/
\n2.6 Points
\nAt a constant temperature, pressure and volume are inversely
\nrelated. This is known as _____________ gas law.<\/p>\n
A.Boyle’s<\/p>\n
B.Henry’s<\/p>\n
C.Dalton’s
\n D.Charles’<\/p>\n
Question 12 of 39 2.6\/
\n2.6 Points
\nWhich of the following laws states that the rate of
\ndiffusion through a tissue such as the respiratory membrane is proportional to
\nthe surface area and the difference in the partial pressure of gas between the
\ntwo sides of the tissue?<\/p>\n
A.Boyle’s law<\/p>\n
B.Dalton’s law
\n C.Charles’ law<\/p>\n
D.Fick’s law<\/p>\n
Question 13 of 39 2.6\/
\n2.6 Points
\nPulmonary ventilation is:<\/p>\n
A.commonly referred to as breathing, is the process by which air is
\nmoved into and out of the lungs.
\n B.the volume of air available for gas
\nexchange<\/p>\n
C.anatomical dead space times respiratory
\nrate<\/p>\n
D.is an inactive process involving the femur
\nand the phalanges muscles<\/p>\n
Question 14 of 39 2.6\/
\n2.6 Points
\nTo eject greater volume of blood, the ventricle responds by
\ncontracting more forcefully. This is referred to as as the:<\/p>\n
A.Diastolic mechanism<\/p>\n
B.Frank-Starling mechanism<\/p>\n
C.Fick principle<\/p>\n
D.cardiovascular drift<\/p>\n
Question 15 of 39 2.6\/
\n2.6 Points
\nAn increase in heart rate that occurs in anticipation of
\ncompetition is due to:<\/p>\n
A.an increase in stimulation of sympathetic nervous system<\/p>\n
B.an increase in stimulation of
\nparaympathetic nervous system<\/p>\n
C.decrease in stimulation of sympathetic
\nnervous system<\/p>\n
D.release of acetylcholine<\/p>\n
Question 16 of 39 2.6\/
\n2.6 Points
\nResting Heart Rate:<\/p>\n
A.decreases as a result of endurance training<\/p>\n
B.increases as a result of endurance training<\/p>\n
C.remains the same as a result of resistance
\ntraining<\/p>\n
D.none of the above<\/p>\n
Question 17 of 39 0.0\/
\n2.6 Points
\nFatigue hinders performance by<\/p>\n
A.decreasing muscular strength<\/p>\n
B.decreasing reaction time<\/p>\n
C.decreasing movement time<\/p>\n
D.All of these are <\/p>\n
Question 18 of 39 2.6\/
\n2.6 Points
\nA sacomere is:<\/p>\n
A.the basic functional unit of a myofibril and the basic contractile
\nunit of muscle.
\n B.a molecule<\/p>\n
C.a thin filament<\/p>\n
D.a junction<\/p>\n
Question 19 of 39 2.6\/
\n2.6 Points
\nWhich of the following is in?<\/p>\n
A.The heart rate of a trained person is lower
\nat rest and at the same absolute exercise intensity than the heart rate of an
\nuntrained person
\n B.EDV is greater in an aerobically trained
\nperson than in an untrained person<\/p>\n
C.The Frank-Starling mechanism results in an
\nincrease in the force of contraction <\/p>\n
D.Stroke volumes are the same for a trained person regardless of body
\nsize<\/p>\n
Question 20 of 39 0.0\/
\n2.6 Points
\nMost research studies that have investigated the effects of
\nexercise training on heart size have been<\/p>\n
A.longitudinal training studies<\/p>\n
B.cross-sectional studies<\/p>\n
C.individual case studies<\/p>\n
D.multifaceted studies<\/p>\n
Question 21 of 39 0.0\/
\n2.6 Points
\nDoppler echocardiography provides<\/p>\n
A.one-dimensional views of the heart<\/p>\n
B.two-dimensional views of the heart<\/p>\n
C.three-dimensional views of the heart<\/p>\n
D.measurement of blood flow<\/p>\n
Question 22 of 39 2.6\/
\n2.6 Points
\nAerobic training results in which of the following changes
\nin stroke volume?<\/p>\n
A.increased stroke volume at rest<\/p>\n
B.increased stroke volume at a standardized
\nsubmaximal rate of work<\/p>\n
C.increased stroke volume at maximal rates of
\nwork<\/p>\n
D.All of these are <\/p>\n
Question 23 of 39 2.6\/
\n2.6 Points
\nAn increase in mechanical efficiency is a possible
\nexplanation for<\/p>\n
A.a decrease in resting heart rate after
\nendurance training<\/p>\n
B.a higher oxygen consumption rate at a given
\nsubmaximal exercise work load after training <\/p>\n
C.a lower oxygen consumption at a given submaximal exercise workload
\nafter training
\n D.a higher maximal oxygen consumption<\/p>\n
Question 24 of 39 0.0\/
\n2.6 Points
\nMuch of the increase in blood volume during the first two
\nweeks of an endurance training program results from increased volume of red
\nblood cells.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Answer Key:<\/p>\n
Question 25 of 39 2.6\/
\n2.6 Points
\nIncreases in resting metabolic rate after endurance training
\nare most likely for people under 40 years of age.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Answer Key: <\/p>\n
Question 26 of 39 2.6\/
\n2.6 Points
\nAnaerobic 30-second training bouts lead to an increase in<\/p>\n
A.succinate dehydrogenase <\/p>\n
B.phosphofructokinase<\/p>\n
C.citrate synthase<\/p>\n
D.All of these are <\/p>\n
Question 27 of 39 2.6\/
\n2.6 Points
\nSixty- and seventy-year-old men and women are not able to
\nincrease their maximal oxygen uptake with endurance training.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Question 28 of 39 2.6\/
\n2.6 Points
\nThe ability of the heart to change its force of contraction
\nand therefore stroke volume in response to changes in venous return is called:<\/p>\n
A.Dalton’s law<\/p>\n
B.The Frank-Starling mechanism<\/p>\n
C.Fick’s law<\/p>\n
D.Poisseulle’s law<\/p>\n
Question 29 of 39 2.6\/
\n2.6 Points
\nHemoglobin is one of the substances diluted by plasma for
\nexpansion<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Question 30 of 39 2.6\/
\n2.6 Points
\nMuscle hypertrophy refers to:<\/p>\n
A.immobilization of a muscle<\/p>\n
B.a decrease in muscle size<\/p>\n
C.an increase in muscle size<\/p>\n
D.an increase in number of muscle fibers<\/p>\n
Question 31 of 39 2.6\/
\n2.6 Points
\nA decrease in the size of individual muscle fibers is
\nreferred to as:<\/p>\n
A.hypertrophy<\/p>\n
B.atrophy<\/p>\n
C.hyperplasia<\/p>\n
D.hypoplasia<\/p>\n
Question 32 of 39 2.6\/
\n2.6 Points
\nMuscle atrophy may be defined as:<\/p>\n
A.an increase in muscular strength that
\noccurs without resistance training<\/p>\n
B.a loss of muscle tone<\/p>\n
C.a loss of muscular coordination caused by
\ndecreased neuromuscular activation <\/p>\n
D.a wasting away (decrease) in muscle size<\/p>\n
Question 33 of 39 0.0\/
\n2.6 Points
\nMuscular endurance is highly related to the development of:<\/p>\n
A.aerobic capacity<\/p>\n
B.muscular strength and anaerobic power<\/p>\n
C.leg speed and anaerobic power<\/p>\n
D.cardiorespiratory systems’ ability to maintain oxygen delivery to
\nworking muscles during prolonged bouts of exercise <\/p>\n
Question 34 of 39 0.0\/
\n2.6 Points
\nWhich of the following sports would be least dependent on
\nmuscular endurance?<\/p>\n
A.boxing<\/p>\n
B.weight lifter<\/p>\n
C.distance runner<\/p>\n
Question 35 of 39 2.6\/
\n2.6 Points
\nAldosterone is responsible for maintaining appropriate
\nsodium levels.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Question 36 of 39 2.6\/
\n2.6 Points
\nThyroxine regulates sodium levels.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Question 37 of 39 2.6\/
\n2.6 Points
\nResistance Training and Gains in Muscular Fitness
\nAbsolute strength gains are typically greatest in men. <\/p>\n
True<\/p>\n
False<\/p>\n
Question 38 of 39 2.6\/
\n2.6 Points
\nThe body’s heating and cooling mechanisms are activated by
\nthe hypothalamus.<\/p>\n
A. True<\/p>\n
B. False<\/p>\n
Answer Key: <\/p>\n
Question 39 of 39 1.2\/
\n1.2 Points
\nThe amount of energy expended for different activities
\nvaries with the intensity and type of exercise<\/p>\n
A. True<\/p>\n
B. False<\/p>\n","protected":false},"excerpt":{"rendered":"
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