A&p – Chapter 7 – The Muscular System

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A&P – Chapter 7 – The Muscular System

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