1 of 323.0/ 3.0 PointsThe humerus fits into what at the s

1 of 323.0/ 3.0 PointsThe humerus fits into what at the shoulder?A.acetabulumB.clavicleC.acromion processD.glenoid cavityE.olecranon process 2 of 323.0/ 3.0 PointsWhat two hormones are involved in regulating the blood calcium level?A.calcitonin and reninB.renin and aldosteroneC.renin and PTHD.aldosterone and PTHE.PTH and calcitonin 3 of 323.0/ 3.0 PointsHow many vertebrae are there?A.5B.10C.18D.24E.33 4 of 323.0/ 3.0 PointsWhich function of the skeletal system requires the leg bones to be extremely strong?A.They support the entire body.B.They protect soft body parts.C.They produce blood cells.D.They store minerals and fat.E.They permit flexible body movement. 5 of 323.0/ 3.0 PointsWhich bone is part of the pectoral girdle?A.clavicleB.radiusC.ulnaD.carpalsE.manubrium 6 of 323.0/ 3.0 PointsWhat is the name of the small gap that separates the axon terminal of a nerve from the sarcolemma?A.T tubuleB.sliding filamentC.synaptic cleftD.synaptic vesicleE.sarcoplasmic reticulum 7 of 323.0/ 3.0 PointsWhat ion is responsible for initiating muscle contraction?A.Mg2+B.Ca2+C.H+D.Cl-E.Na+ 8 of 323.0/ 3.0 PointsOne sarcomereA.extends from Z line to Z line.B.is composed of many myofibrils.C.contains only actin fibers.D.is composed of many muscle fibers.E.surrounds each muscle in the body. 9 of 323.0/ 3.0 PointsWhat is found within the intercalated disks of cardiac muscle?A.sarcoplasmic reticulumB.gap junctionsC.dense connective tissueD.boneE.myoglobin 10 of 323.0/ 3.0 PointsWhat is the name of a sudden and involuntary muscular contraction often accompanied by pain?A.bursitisB.sprainC.strainD.ticE.spasm 11 of 323.0/ 3.0 PointsOf the three types of muscle tissue which is not striated?A.smooth muscleB.cardiac muscleC.skeletal muscleD.skeletal and smooth lack striationsE.cardiac and smooth lack striations 12 of 323.0/ 3.0 PointsThe cerebrum is associated with theA.two lateral ventricles.B.third ventricle.C.fourth ventricle.D.posterior ventricle.E.anterior ventricle. 13 of 323.0/ 3.0 PointsWhat type of memory does language depend upon?A.short-termB.semanticC.episodicD.skillE.long term 14 of 323.0/ 3.0 PointsWhich of the following is not a function of the nervous system?A.receive sensory inputB.cushion and protect soft tissueC.perform information processingD.perform integrationE.generate motor output 15 of 323.0/ 3.0 PointsThe spinal cord belongs to theA.peripheral nervous system.B.central nervous system.C.axial nervous system.D.appendicular nervous system.E.none of these. 16 of 323.0/ 3.0 PointsLong term use of heroin results in which set of symptoms?A.weight gain poor cognitive performance irritabilityB.cardiac and/or respiratory arrest sudden deathC.apathy euphoria hallucinationsD.addiction hepatitis HIV/AIDS various bacterial infectionsE.anxiety jitters insomnia headaches 17 of 323.0/ 3.0 PointsWhich of the following is part of the limbic system?A.spinal cordB.primary somatosensory areaC.amygdalaD.reticular formationE.cerebellum 18 of 323.0/ 3.0 PointsWhich disorder of the eye is due to the cornea or lens being uneven resulting in a fuzzy image?A.astigmatismB.glaucomaC.color blindnessD.nearsightednessE.farsightedness 19 of 323.0/ 3.0 PointsThe utricle is especially sensitive to what type of movements?A.back and forthB.up and downC.standing upsideD.spinning aroundE.bending over 20 of 323.0/ 3.0 PointsWhich structure in the eye refracts and focuses light rays?A.lensB.humorsC.cone cellsD.retinaE.pupil 21 of 323.0/ 3.0 PointsThe summing up of nerve signals by _____________________ is called __________________.A.the reticular activating system perceptionB.the cerebral cortex sensationC.sensory receptors sensationD.the cerebral cortex perceptionE.sensory receptors integration 22 of 323.0/ 3.0 PointsWhat type of exteroceptors are located in the ear?A.mechanoreceptorsB.chemoreceptorsC.photoreceptorsD.thermoreceptorsE.none of these 23 of 323.0/ 3.0 PointsWhy does wave summation occur?A.Muscle fibers have been allowed to fully relax.B.A large amount of time elapses between stimulations.C.Muscle fibers are partially contracted when the next stimulus arrives.D.Muscle twitches are not yet overlapping. 24 of 323.0/ 3.0 PointsIn the lab a researcher finds that the threshold stimulus to induce an action potential in a muscle fibers sarcolemma was 3.0 volts. Which of the following would result in muscle tension?A.1.0 voltB.2.0 voltsC.3.0 voltsD.4.0 voltsE.3.0 volts and 4.0 volts 25 of 323.0/ 3.0 PointsA motor unit is defined as _______.A.a single neuron and a single muscle fiberB.a nerve and a muscleC.the axon terminals of a single motor neuron and all of the muscle fibers that it stimulatesD.a single muscle fiber and all its axon terminals 26 of 323.0/ 3.0 PointsWhen wave summation occurs _______.A.individual muscle twitches are separatedB.the muscle force generated decreasesC.the muscle fiber has received a single stimulus eventD.the muscle force generated increases 27 of 323.0/ 3.0 PointsWhich of the following is NOT a phase of a muscle twitch?A.contraction phaseB.shortening phaseC.relaxation phaseD.latent period 28 of 323.0/ 3.0 PointsContraction of a skeletal muscle that results from a single stimulus is called a ________.A.contraction phaseB.twitchC.motor unitD.tetanus 29 of 323.0/ 3.0 PointsWhich of the following describes the relaxation phase?A.The sarcomeres are increasing in length and the force generated increases.B.The sarcomeres are increasing in length and the force generated decreases.C.The sarcomeres are decreasing in length and the force generated increases.D.The sarcomeres are decreasing in length and the force generated decreases.Part 6 of 7 – 0.0/ 8.0 Points Answer the following in your own words without using any resources. Your answer should be written in complete sentences using correct grammar spelling and terminology. 30 of 320.0/ 4.0 PointsBriefly describe wave summation. 31 of 320.0/ 4.0 PointsBriefly describe treppe.

Expert Help With This Assignment — On Your Terms