In a contracted skeletal muscle fiber

1.  M line disappears

2.  H-zone elongates

3.  l-band remains constant

4.  A-band disappears 

Subtopic:  Excitation Contraction Coupling II |
 74%
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Sheet or broadband of fibrous connective tissue that is deep to the skin and surrounds entire muscles and other organs of the body are

1.  Epimysium

2.  Fascicule

3.  Endomysium

4.  Fascia 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 59%
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The muscle is a specialised tissue which is originated from

1.  Endoderm

2.  Mesoderm

3.  Ectoderm

4.  Yolk sac 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 92%
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A collagenous connective tissue layer hold the muscle bundles together.

1.  Perimysium

2.  Endomysium

3.  Epimysium

4.  Fascia 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 87%
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The plasma membrane of the muscle fibre is called

1.  Sarcoplasma

2.  Sarcolemma

3.  Sarcoplasmic Reticulum

4.  Syncytial 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 78%
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The dark band present on myofibril is

1. Isotropic band

2. Anisotropic band

3. Hensen's zone 

4. M-line

Subtopic:  Skeletal Muscle: Basic Anatomy |
 92%
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The structural and functional unit of myofibril which contracts to cause movement is called

1.  Sarcolemma

2.  Sarcomere

3.  Fascia

4.  Myosin

Subtopic:  Skeletal Muscle: Basic Anatomy |
 88%
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Which of the protein is not a part of the thin myofilament?

1. Myosin

2.  Actin

3.  Troponin

4.  Tropomyosin 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 86%
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Select the true statement 

1.  A band is present in the middle of the sarcomere

2.  H zone is present in the middle of A-band 

3.  M line is present in the middle of the H-zone

4.  All of these 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 82%
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Which one is not the character of red skeletal muscle?

1.  Smaller diameter

2.  More mitochondria

3.  More sarcoplasmic reticulum

4.  More blood capillaries 

Subtopic:  Skeletal Muscle: Basic Anatomy |
 75%
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