Anatomy And Physiology Questions - Muscle Tissue

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Anatomy And Physiology Questions - Muscle Tissue
Questions about muscle tissue. Some of the questions are related to the mega case unit "Childhood" (muscle contraction, neuromuscular junction) and some of the questions are related to the "Maturity 1" case unit (differences between cardiac, skeletal and smooth muscles).

  
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1. 
In the diagram, what is the basic functional unit of a myofibril?
A.
B.
C.
D.
E.
2.  Increasing the number of active motor units is called
A.
B.
C.
D.
E.
3. 
In the diagram, where is the axon terminal?
A.
B.
C.
D.
E.
4. 
In the diagram, where are actin proteins found?
A.
B.
C.
D.
E.
5. 
In the diagram, where is the endomysium?
A.
B.
C.
D.
E.
6.  How many types of smooth muscle tissues are there?
A.
B.
C.
D.
E.
7.  Myofibrils contain
A.
B.
C.
D.
E.
8.  Titin is found in a sarcomere
A.
B.
C.
D.
E.
9. 
In the diagram, where is the zone of overlap?
A.
B.
C.
D.
E.
10.  The three different types of muscle tissue differ from each other by:
A.
B.
C.
D.
E.
11.  Which of the following is used to reinforce the sarcolemma?
A.
B.
C.
D.
E.
12.  Smooth muscle tone is due to the prolonged presence of what in the cytosol?
A.
B.
C.
D.
E.
13. 
In the diagram, which are regulatory proteins?
A.
B.
C.
D.
E.
14.  Hyperplasia is
A.
B.
C.
D.
E.
15.  Creatine phosphate and ATP together create enough energy for a muscle to contract for
A.
B.
C.
D.
E.
16. 
In the diagram, where is the H zone?
A.
B.
C.
D.
E.
17.  The mitochondria in muscle fibre are arranged
A.
B.
C.
D.
E.
18. 
In the diagram, which is only a structural protein?
A.
B.
C.
D.
E.
19. 
In the diagram, which are motor proteins?
A.
B.
C.
D.
E.
20. 
In the diagram, where is the thick filament?
A.
B.
C.
D.
E.
21.  This is a brief contraction of all muscle fibres in a motor unit in response to a single action potential.
A.
B.
C.
D.
E.
22.  The sarcoplasmic reticulum releases calcium ions into the cytosol
A.
B.
C.
D.
E.
23.  How many molecules of acetylcholine need to bind to open the ion channel of the ACh receptor?
A.
B.
C.
D.
E.
24.  This is the least powerful type of muscle fibre.
A.
B.
C.
D.
E.
25. 
In the diagram, where is the epimysium located?
A.
B.
C.
D.
E.
26.  This is the property of muscle that gives it the ability to stretch without damage.
A.
B.
C.
D.
E.
27.  Which of the below structures is found in cardiac muscle tissue but not skeletal muscle tissue?
A.
B.
C.
D.
E.
28.  In the sliding filament mechanism, the thin filament is being pulled towards the
A.
B.
C.
D.
E.
29.  What energizes the myosin head?
A.
B.
C.
D.
E.
30.  Axon terminal clusters at the ends of neuromuscular junctions are referred to as:
A.
B.
C.
D.
E.
31.  In an isometric contraction the muscle develops tension but does not
A.
B.
C.
D.
E.
32.  The sarcoplasmic reticulum is used for storing
A.
B.
C.
D.
E.
33. 
In the diagram, where is the mitochondrion?
A.
B.
C.
D.
E.
34.  This results from a muscle action potential propagating along the sarcolemma and into the T tubules.
A.
B.
C.
D.
E.
35. 
In the diagram, where is the muscle fibre located?
A.
B.
C.
D.
E.
36.  What regulatory proteins can be found on an actin molecule?
A.
B.
C.
D.
E.
37. 
In the diagram, what all comes together as one broad sheet of connective tissue to make the tendon?
A.
B.
C.
D.
E.
38. 
In the diagram, where would you find the largest amount of glycogen?
A.
B.
C.
D.
E.
39. 
In the diagram, where would you find stored calcium ions?
A.
B.
C.
D.
E.
40. 
In the diagram, where is the I band?
A.
B.
C.
D.
E.
41.  The signal to excite a muscle cell must cross the neuromuscular junction by the diffusion of acetylcholine across the
A.
B.
C.
D.
E.
42. 
In the diagram, what is made from dense regular connective tissue?
A.
B.
C.
D.
E.
43. 
In the diagram, where is the axon collateral?
A.
B.
C.
D.
E.
44. 
In the diagram, what is made from dense irregular connective tissue?
A.
B.
C.
D.
E.
45.  Which of the following contain thick filament?
A.
B.
C.
D.
E.
46. 
In the diagram, which parts move to the centre of the sarcomere (closer together) when the fibre contracts?
A.
B.
C.
D.
E.
47.  A sustained contraction is
A.
B.
C.
D.
E.
48. 
On the diagram, where is the deep fascia?
A.
B.
C.
D.
E.
49. 
In the diagram, where is the M line?
A.
B.
C.
D.
E.
50.  How much of the total body weight of an average adult is muscle tissue?
A.
B.
C.
D.
E.
51. 
In the diagram, where is the A band?
A.
B.
C.
D.
E.
52.  This is also referred to as the period of lost excitability.
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B.
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D.
E.
53.  These are the contractile organelles of the muscle fibre.
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B.
C.
D.
E.
54.  This part of the skeletal muscle cell releases calcium when stimulated by the T tubules.
A.
B.
C.
D.
E.
55. 
In the diagram, where is thick filament found?
A.
B.
C.
D.
E.
56.  What is NOT a factor that can lead to muscle fatigue?
A.
B.
C.
D.
E.
57.  Which of the following is NOT a major function of muscle tissue?
A.
B.
C.
D.
E.
58.  Which of the following functions as a motor protein in all three types of muscle tissue?
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B.
C.
D.
E.
59.  When connective tissue extends as a broad flat layer, the tendon is referred to as
A.
B.
C.
D.
E.
60.  How do muscles produce ATP?
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B.
C.
D.
E.
61. 
In the diagram, where is thin filament found?
A.
B.
C.
D.
E.
62.  Which of the following exhibits autorhythmicity?
A.
B.
C.
D.
E.
63.  The sequence that muscle action potentials must go through to excite a muscle cell is
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B.
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D.
E.
64.  This consists of a somatic motor neuron plus all the skeletal muscle fibres it stimulates.
A.
B.
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D.
E.
65. 
In the diagram, which parts make up the neuromuscular junction?
A.
B.
C.
D.
E.
66.  What is needed for the contraction cycle to continue?
A.
B.
C.
D.
67.  For every nerve that penetrates a skeletal muscle there are generally how many arteries and veins?
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B.
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D.
E.
68.  What are the four steps of the muscle contraction cycle in order?
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B.
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D.
E.
69.  Which of the following contains thin filaments?
A.
B.
C.
D.
E.
70.  After the fusion fo myoblasts, the muscle fibre loses its ability to do what?
A.
B.
C.
D.
E.
71. 
In the diagram, what structure is filled with mostly interstitial fluid?
A.
B.
C.
D.
E.
72.  This is a band of connective tissue that surrounds muscles.
A.
B.
C.
D.
E.
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