BIOS252 Comprehensive Comprehensive Exam With Answers (50 Solved Questions)

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BIOS 252 COMP EXAM WITH VERIFIED QUESTIONS AND ANSWERSWhich type of synapse involves the secretion of a neurotransmitter across thesynapse to stimulate the post-synaptic cell?A. MechanicalB. NominalC. ElectrotonicD. ProcessingE. Chemical - E. ChemicalYour friend nods 'yes' to you, going through flexion, extension, and hyper extension intheir enthusiastic response. This movement at the fulcrum represents aA. First-class lever systemB. Second-class lever systemC. Third-class lever systemD. Fourth-class lever systemE. Does not represent a lever system - A. First-class lever systemThe sarcoplasmic reticulum storesA. OxygenB. GlycogenC. ATPD. Calcium ionsE. Glucose - D. Calcium ionsWhich of the following is NOT a function of smooth muscle tissue?A. Altering the diameter of the respiratory passageways

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B. Elevating hairs on the armC. Blinking the eyelidD. Moving food materials along the digestive tractE. Moving urine from the kidneys into the bladder - C. Blinking the eyelidIn an isometric contraction, the ,uncle develops tension but does not?A. ShortenB. LengthenC. Expend energyD. Conduct electrical currentE. Exhibit elasticity - A. ShortenWhen compared to a classic lever system, the synovial joints of our Musculoskeletalsystem play the role of the _________?A. WeightB. ForceC. FulcrumD. LeverE. Resistance - C. Fulcrum.Which of the following event will occur when depolarizing graded potential's reach themembrane of the axon Hillock, causing its membrane potential to reach threshold?A. Ligand-gated Ca++ channels close rapidlyB. Voltage-gated Ca++ channels open rapidlyC. Ligand-gated Na+ channels close rapidlyD. Voltage-gated Na+ channels open rapidlyE. Ligand-gated Cl+ channels close rapidly - D. Voltage-gated Na+ channels openrapidly.

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The attachment of the muscles tendon to the stationary bone is called the _________?; The attachment of the muscles other tendon to the movable bone is calledthe__________?A. Origin ; actionB. Insertion ; actionC. Origin ; insertionD. Stabilizer ; moverE. Insertion ; origin - C. Origin ; InsertionWhich of the following fascicular arrangements would best be described as fasciclesarranged on only one side of the tendon?A. UnipennateB. BipennateC. FusiformD. CircularE. Multipennate - A. Unipennate_________ is the summation of postsynaptic potentials in response to stimuli thatoccur at different locations in the membrane of a postsynaptic cell at the same timeA. Cortical summationB. Spatial summationC. Temporal summationD. Tactile summationE. Olfactory summation - B. Spatial summationWhich of the following molecules energizes the myosin club-head so that it can pullthe actin molecule?A. TroponinB. TropomyosinC. Calcium

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D. PotassiumE. ATP - E. ATPWhich of the following muscles is the major agonist for plantar-flexion of the footA. GastrocnemiusB. Tibialis anteriorC. Triceps femorisD. Inferior rectusE. Peroneus - A. GastrocnemiusWhich of the following is not a structural characteristic of long bones?A. DiaphysisB. EpicondyleC. EpiphysisD. PeriosteumE. Endosteum - B. EpicondyleThe storage and release of calcium and phosphorus is an example of which of the sixmain functions of the skeletal systemA. Blood cell productionB. Triglyceride storageC. Mineral homeostasisD. SupportE. Protection - C. Mineral homeostasisWhich of the following bone cells can best be described as bone-building cellsA. OsteoblastsB. OsteocytesC. Osteoprogenitor cellsD. Osteoclasts

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