Lack of relaxation between successive stimuli in sustained muscle contraction is known as:

  • Option 1)

    Spasm

  • Option 2)

    Fatigue

  • Option 3)

    Tetanus

  • Option 4)

    Tonus

 

Answers (3)

As we learnt in

Disorders Of Muscular And Skeletal System -

Tetany

- wherein

Rapid spasms (wild contractions) in muscle due to low Ca++ in body fluid.

 

 

 

The correct answer is (3) tetanus, This disease is caused by bacteria Clostridium tetani. The bacteria release a poison tetanospasmin in the body resulting in the blockage of nerve signals from the spinal cord to the muscles thus causing muscle spasms and results in lockjaw.

 

 


Option 1)

Spasm

incorrect 

Option 2)

Fatigue

incorrect 

Option 3)

Tetanus

correct 

Option 4)

Tonus

incorrect 

option 3 Tetanus

Wild contraction- spasm

Slight contraction - tonus 

Sustained contraction - tetany or tetanus

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