muscle

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tracyblome
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45780
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muscle
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2010-10-30 14:20:32
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muscular system terms
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muscular system terms
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  1. Increased rigidity of muscle after death due to cross-bridge formation between actin and myosit as calcium ions leak from the sarcoplamic reticulum.



    (hint: RM, death)
    RIGOR MORTIS
  2. Summation of the local potential that results when two or more action potentials arrive at a single synapse in rapid succession.



    (hint: TS, side of head, addition)
    TEMPORAL SUMMATION
  3. Enlarged end of the sarcoplasmic reticulum in the area of the T tubules.



    (hint: TC, deadly cancer, sister)
    TERMINAL CISTERNA
  4. Sum of active and passive tension



    (hint: TT, __ body workout, stressed)
    TOTAL TENSION
  5. Tubule that extends from the sarcolemma to a myofibril of striated muscle.



    (hint TT, not reverse, T____)
    TRANSVERSE TUBULE
  6. Two terminal cisternae and a T Tubule between them.



    (hint: T, Three)
    TRIAD
  7. Relating to the internal organs.



    (hint: V, Cereal)
    VISCERAL
  8. Delicate membranelike structure found at either end of a sarcomere to which the actin myofilaments attach.



    (hint ZD, computer___)
    Z DISK
  9. Fatigue due to a depletion of ATP within the muscle fibers.



    (hint: MF, term in definition)
    MUSCULAR FATIGUE
  10. One of the three phases of muscle contraction; time between the application of the stimulus and the beginning of muscular contraction. Also called the latent phase.


    (hint: LP, rhymes with Bag, 2nd part in definition)
    LAG PHASE
  11. Shallow invagination in the membranes of smooth muscle cells that may perform a function similar to both the T Tubules and sarcoplasmic reticulum of skeletal muscle.



    (hint C, bears live in what?)
    CAVEOLA
  12. Fine connective tissue sheath surrounding a muscle fiber.



    (hint: E, into)
    ENDOMYSIUM
  13. Tension applied to a load by a muscle without contracting; produced when an external force stretches the muscle.



    (hint: PT, throw the ball or ___, stressed)
    PASSIVE TENSION
  14. Temporary inability of a muscle to either contract or relax because of a depletion of ATP so that active transport of calcium ions into the sarcoplasmic reticulum cannot occur.



    (hint: PC, mental, baby on the way)
    PHYSIOLOGIC CONTRACTURE
  15. Refers to the membrane of a nerve, muscle, or gland that is in close association with a presynaptic terminal. The postsynaptic membrane has receptor molecules within it that bind to neurotransmitter molecules.



    (hint: P, Post office)
    POSTSYNAPTIC
  16. Functional membrane-to-membrane contact of a nerve cell with another nerve cell, muscle cell, gland cell, or sensory receptor; functions i the transmission of action potentials from one cell to another.



    (hint: S, take a nap)
    SYNAPSE
  17. Area between the ends of two adjacent myosin myofilaments within a myofibril; z disk divides the I band into two equal parts.



    (hint: IB, term in definition)
    I BAND
  18. Fibrous protein found as a component of the actin myofilament.



    (hint: T, Troop)
    TROPOMYOSIN
  19. Cytoplasm of a muscle fiber, excluding the myofilaments.



    (hint: S, sarcasm)
    SARCOPLASM
  20. Stimulus of greater magnitude than a maximal stimulus; however, the frequency of action potentials is not increased above that produced by a maximal stimulus



    (hint: SS, super, most of the term in definition)
    SUPRAMAXIMAL STIMULUS
  21. Globular protein component of the actin myofilament.



    (hint: T, troop nine)
    TROPONIN
  22. Stimulation of a muscle fiber produces an action potential that results in contraction of the muscle fiber.



    (hint: E-CC, superhappy, baby is coming, a pair)
    EXCITATION-CONTRACTION COUPLING
  23. Stimulus resulting in a local potential just large enough to reach threshold and produce an action potential.



    (hint: TS, term is in definition)
    THRESHOLD STIMULUS
  24. Series of successively stronger contractions that occur when a rested muscle fiber receives closely spaced stimuli of the same strength but with a sufficient stimulus interval to allow complete relaxation of the fiber between stimuli.



    (hint: T, Trip---treat)
    TREPPE
  25. Fibrous sheath enveloping a bundle of skeletal muscle fibers (muscle fascicle).



    (hint: P, cody)
    PERIMYSIUM
  26. Thin myofilament within the sarcomere; composed of two F actin molecules, tropomyosin, and troponin molecules.



    (hint: AM, in definition)
    ACTIN MYOFILAMENT
  27. Value of the membrane potential of which an action potential is produced as a result of depolarization in response to a stimulus.



    (hint: TP, hold, in definition)
    THRESHOLD POTENTIAL
  28. Loose areoloar connective tissue found beneath the skin (hypodermis) or dense connective tissue that encloses and separates muscles.



    (hint: F, face)
    FASCIA
  29. See Lag Phase



    (hint: LP)
    LATENT PHASE
  30. Globular protein molecules that, when bound together, form fibrous actin (F actin).



    (hint: GA, world, in definition)
    G ACTIN
  31. Muscle cell



    (hint: MF, in definition, clothes)
    MUSCLE FIBER
  32. Fibrous actin molecule that is composed of a series of globular actin molecules (G Actin)



    (hint FA, in definition)
    F ACTIN
  33. Thick myofilament of muscle fibrils; composed of myosin molecules.



    (hint: MM, in definition)
    MYOSIN MYOFILAMENT
  34. Fatigue caused by the central nervous system.



    (hint: PF, thinking I'm tired)
    PSYCHOLOGIC FATIGUE
  35. Period characterized by a reduced capacity to do work.



    (hint: F, tired)
    FATIGUE
  36. Contraction of a whole muscle in response to a stimulus that causes an action potential in one or more muscle fibers.



    (hint: MT, not bone but__, witch)
    MUSCLE TWITCH
  37. Enzyme found in the synaptic cleft that causes the breakdown of acetylcholine to acetic acid and choline, thus limiting the stimulatory effect of acetylcholine.



    (hint: A, LOOOng word, part of it in definition)
    ACETYLCHOLINESTERASE
  38. Electric charge difference inside a cell membrane, measured relative to just outside the cell membrane.



    (hint RMP, bed, insane in the __, possible)
    RESTING MEMBRANE POTENTIAL
  39. One of the three phases of muscle contraction; the time during which tension is produced by the contraction of muscle.



    (hint: CP, term in definition)
    CONTRACTION PHASE
  40. When a stimulus is applied to a cell, an action postential is either produced or not. In muscle cells the cell either contracts to the maximum extent possible (for a given condition) or does not contract.



    ( hint: AON, texas holdem)
    ALL-OR-NONE
  41. Muscle contraction in which the length of the muscle does not change but the tension produced increases.



    (hint: IC, alone, baby on way)
    ISOMETRIC CONTRACTION
  42. Enlarged axon terminal or terminal bouton.



    (hint: PT, before, deadly cancer)
    PRESYNAPTIC TERMINAL
  43. Plasma membrane of a muscle fiber.



    (hint: S, deep sleep)
    SARCOLEMMA
  44. Part of a myofibril between adjacent Z disks.



    (hint: S, sarcasim)
    SARCOMERE
  45. Line in the center of the H zone made of delicate filaments that holds the myosin myofilaments in place in the sarcomere of muscle fibers.



    (hint ML, Part in definition)
    M LINE
  46. Endoplasmic reticulum of muscle.



    (hint SR, look at the definition)
    SARCOPLASMIC RETICULUM
  47. Stimulus resulting in a local potential so small that it does not reach threshold and produce an action potential.



    (hint SS, teacher is sick, ___package)
    SUBTHRESHOLD STIMULUS
  48. Length of the myosin myofilament in a sarcomere.



    (hint AB, I want to play guitar in __ ____)
    A BAND
  49. Extremely fine molecular thread helping to form the myofibrils of muscle; thick myofilaments are formed of myosin, and think myofilaments are formed of actin.



    (hint: M, in definition)
    MYOFILAMENT
  50. Space between the presynaptic and the postsynaptic membranes.



    (hint: SC, first part in definintion, not right but)
    SYNAPTIC CLEFT
  51. Tension produced by the contraction of a muscle.



    (hint: AT, sexually ___, stressed)
    ACTIVE TENSION
  52. Fibrous envelope surrounding a skeletal muscle.



    (hint: E, Pima)
    EPIMYSIUM
  53. Area in the center of the A band in which there are no actin myofilaments; contains only myosin.



    (hint: HZ, end)
    H ZONE
  54. Neuron that innervates skeletal; smooth, or cardiac muscle fibers.



    (hint: MN, make a car go, axon)
    MOTOR NEURON
  55. Increased force of contraction of a muscle due to increased frequency of stimulation.



    (hint: MWS, no division but.., bye, total)
    MULTIPLE WAVE SUMMATION
  56. Phase of muscle contraction following the contraction phase; the time from maximal tension production until tension decreases to its resting level.



    (hint: RP, not working but..., 2nd part in definition)
    RELAXATION PHASE
  57. Fatigue due to depletion of neurotransmitter vesicles in the presynaptic terminals.



    (hint: SF, both words in definition)
    SYNAPTIC FATIGUE
  58. Change in membrane potential in an excitable tissue that acts as an electric signal and is propagated in an all-or-none fashion.



    (hint: AP, toys: __figures, 2nd part in definition)
    ACTION POTENTIAL
  59. Stimulus resulting in a local potential just large enough to produce the maximum frequency of action potentials.



    (hint: MS, highest you can go, 2nd part in definition)
    MAXIMAL STIMULUS
  60. Relatively constant tension produced by a muscle for long periods as a result of asynchronous contraction of motor units.



    (hint: MT, attached to bone, I want my body to be..)
    MUSCLE TONE
  61. Primitive multinucleated cell with the potential of developing into a muscle fiber.



    (hint: M, mine----produce)
    MYOBLAST
  62. Change in the electric charge difference across the cell membrane that causes the difference to be smaller or closer to O MV; phase of the action potential in which the membrane potential moves toward zero, or becomes positive.



    (hint: D, move away)
    DEPOLARIZATION
  63. Increased force of contraction of a muscle due to recruitment of motor units.



    (hint: MMUS, not division, makes car run, one, total)
    MULTIPLE MOTOR UNIT SUMMATION
  64. Specialized synapse between a motor neuron and a muscle fiber.



    (hint: NJ, axon--attached to bones, Grand)
    NEUROMUSCULAR JUNCTION
  65. Any specific chemical agent released by a presynaptic cell on excitation that crosses the synaptic cleft and stimulates or inhibits the postsynaptic cell.



    (hint: N, axon---transformers)
    NEUROTRANSMITTER
  66. Oxygen necessary for the synthesis of the ATP required to remove lactic acid produced by anaerobic respiration.



    (hint OD, breath, owe on credit card)
    OXYGEN DEBT
  67. Phase of the action potential in which the membrane potential moves from its maximum degree of depolarization toward the value of the resting membrane potential.



    (hint: R, opposite in definition)
    REPOLARIZATION
  68. Striped, marked by stripes or bands.



    (hint S, look at definition, looks of a muscle)
    STRIATED
  69. Secretory vesicle in the presynaptic terminal containing neurotransmitter substances.



    (hint: SV, 1st part in a word in the definition, 2nd part in the definition)
    SYNAPTIC VESICLE
  70. Band or bundle of nerve or muscle fibers bound together by connective tissue.



    (hint: F, face)
    FASCICULUS
  71. Single neuron and the muscle fibers it innervates.



    (hint: MU, makes a car run, one)
    MOTOR UNIT
  72. Tubelike invagination of the sarcolemma that conducts action potentials toward the center of they cylindrical muscle fibers.



    (hint: TT, 2nd part-gotta take a bath in what?)
    T TUBULE
  73. Relating to the internal organs.



    (hint:V, cereal)
    VISCERAL
  74. Shallow invagination in the membranes of smooth muscle cells that may perform a function similar to both the T tubules and sarcoplasmic reticulum of skeletal muscle.



    (hint: C, bears live where?)
    CAVEOLA

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