A&p – Chapter 7 – The Muscular System

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A&P – Chapter 7 – The Muscular System

  
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1.  Muscles are named by-(Select all that apply)Pg 183
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2.  In order to create movement, muscle fibers usually _______.Pg 183
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B.
3.  Attachment of muscle to bone that doesn't move when contraction occurs.Pg G-23
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B.
4.  Attachment of muscle to bone that moves when contractions occur.Pg G-17
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B.
5.  Smooth muscle is also referred to as-(Check all that apply)Pg 156
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6.  Skeletal muscle is also referred to as-(Check all that apply)pg 156
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7.  Have unique dark bands called intercalated disks where the plasma membranes of adjacent _____ fibers come in contact with each other.Pg 156
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8.  Unique dark bands called _______ where the plasma membranes of adjacent cardiac fibers come in contact with each other.Pg 156
9.  Fibers are cylindrical, branch frequently, and then recombine into a continuous mass of interconnected tissue.Pg 156
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10.  An organ composed mainly of striated muscle fibers & connective tissue.Pg 157
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11.  ______ anchor muscles firmly to bones.Pg 157
12.  Made of dense, fibrous connective tissues in the shape of heavy cords.Pg 157
13.  Muscular movement occurs when chemical enery from nutrient molecules are transferred to protein filaments in each muscle fiber and then converted to mechanical energy that attempts to contract the muscle.Pg 155
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14.  Prefixes that refer to muscle-(Select all that apply)Pg 155
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15.  Each fine thread is a muscle is called a muscle cell or a muscle _____.Pg 156
16.  Have a smooth appearance when viewed under the microscope.Pg 156
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17.  Most ___muscles attach to two bones that have a movable joint between them.Pg 157
18.  Tendon ______ enclose some tendons.Pg 157
19.  Thick & thin myofilaments are formed by proteins called-Pg 157
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20.  Thick myofilaments are made from a protein called-Pg 157
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21.  Thin myofilaments are made from a protein called-Pg 157
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B.
22.  What is the smallest functional unit of muscle?Pg 157-159
23.  Of all the muscles contracting simultaneously, the one that is manily responsible for producing a particular movment is called the _______________.Pg 159
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24.  The other muscles that helps in producing the movement are called ___.Pg 159
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25.  When muscles contract simultaneously, the other muscles that relax are called ____.Pg 159
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26.  Tension during muscle lengthening is often called ___ ___.Page 159
27.  What is required for contraction in the sliding filament model?Pg 158(Select all that apply)
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28.  Functions of skeletal muscles-Pg 159(Select all that apply)
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29.  When maintain body posture because of continuous, low-strenght muscle contractions called ______ contractions.Pg 160
30.  Any decrease below normal temperature is called-Pg 160
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31.  Any increase above normal temperature is called-Pg 160
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32.  If muscle fibers are stimulated repeatedly without adequate periods of rest, the strength of the muscle contraction decreases, resulting in _____.Pg 160
33.  Muscle fibers are stimulated by a nerve fiber called a __________.Pg 161
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34.  Formation of ____ results in a rapid consumption of oxygen & nutrients.Pg 160
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B.
35.  The term _____ describes the continued increased metabolism that must occur in a cell to remove excess lactic acid that accumulates during prolonged exercise.Pg 160
36.  The shutting off of impulses to certain skeletal muscles results in ______.Pg 160
37.  The ____ of muscle fibers produces most of the heat required to maintain body temperature.Pg 160
38.  Chemicals called _____ are released by the motor neuron in response to a nervous impulse.Pg 161
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39.  A single motor neuron, with the muscle fibers it innervates is called a ________/Pg 161
40.  The neuromuscular junction is where ________ meets.Pg 161
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41.  The minimal level of stimulation required to cause a fiber to contract is called the ____ stimulus. Pg 162
42.  Muscle fibers are said to respond ______.Pg 162
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43.  A quick, jerky response to stimulus.Pg 162
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44.  A more sustained and steady response than a twitch.Pg 162
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45.  In most cases produces movement of a joint.pg 162
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46.  In a type of isotonic contraction called ____, the insertion end moves towards the point of origin.Pg 162
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47.  A type of isotonic contraction wherea muscle produces tension as it lengthens and thus insertion moves away from the origin.Pg 162
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48.  A contraction that does not always produce movement. Sometimes it increases the tension within a muscle but does not shorten it.Pg 162
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49.  During prolonged inactivity, muscles usually shrink in mass, a condition called ____.Pg 164
50.  Muscle hypertrophy can be enhanced by-Pg 164
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51.  Exercise may cause an increase in muscle size called ___.Pg 164
52.  Isometric-Pg 164(Choose all that apply)
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53.  Isotonic-Pg 164-165(Choose all that apply)
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54.  Aerobic training also causes an increase in the number of ______ in muscle fibers. This allows production of more ATP as a rapid energy source.Pg 165
55.  Adductor Group-Pg 166(Select all that apply)
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56.  Quadriceps group-Pg 166(Select all that apply)
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57.  Hamstring group-Pg 167(select all that apply)
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58.  Moving a part away from the midline of the body.Pg 173
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59.  A movement that makes the angle between two bones at their joint smaller than it was at the beginning of the movement.Pg 172
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60.  Is a moment around a longitudinal axis.Pg 173
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61.  Function: Raises eyebrowspg 168
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62.  Function: Closes jawPg 168
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