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A&p – Chapter 7 – The Muscular System

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A&p – chapter 7 – the muscular system

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