A&p – Chapter 7 – The Muscular System

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A&P – Chapter 7 – The Muscular System

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