Which of the following are involved in the formation of acetabulum?

a. llium

b. ischium

c. Pubis

1.  a & b only

2.  b & c only

3.  a & c only

4.  a, b & c 

Subtopic:  Number of Bone in Appendicular Skeleton |
 88%
From NCERT
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How many bones are present in the human body?

1.  205

2.  206

3.  201

4.  200 

Subtopic:  Human Skeleton: Introduction, Function, Parts |
 98%
From NCERT
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The skeleton of the head is called

1.  Hyoid

2.  Skull

3.  Ossicle

4.  Cartilage 

Subtopic:  Human Skeleton: Introduction, Function, Parts |
 96%
From NCERT
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The anaerobic contraction of skeletal muscle causes deposition or accumulation of

1.  Gluconic acid

2.  Lactic acid

3.  Pyruvic acid

4.  Hydrochloric acid 

Subtopic:  Energy for Muscle Contraction |
 96%
From NCERT
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Muscle fatigue occurs due to the accumulation of

1.  CO2

2.  Myosin ATPase

3.  Lactic acid

4.  Creatine phosphate 

 

Subtopic:  Energy for Muscle Contraction |
 95%
From NCERT
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Globular head of myosin molecule act as

1.  ATPase

2.  CTPase

3.  TTPase

4.  GTPase 

Subtopic:  Energy for Muscle Contraction |
 98%
From NCERT
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Contractile unit of muscle is part of myofibril between

1.  Z-line and l-band

2.  Z-line and Z-line

3.  Z-line and A-band

4.  A-band and l-band 

Subtopic:  Excitation Contraction Coupling II |
 78%
From NCERT
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The ion that must be present in an adequate amount for binding of cross-bridges with actin is 

1.  Ca+2

2.  Na+

3.  K+

4.  Mg+2

Subtopic:  Excitation Contraction Coupling II |
 96%
From NCERT
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According to the sliding filament theory of muscle contraction, the filament that move to shorten a muscle are 

1.  Myosin

2.  Actin

3.  Collagen

4.  Creatine phosphate 

Subtopic:  Excitation Contraction Coupling II |
 83%
From NCERT
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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%
From NCERT
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