Lack of relaxation between successive stimuli in sustained muscle contraction is known as:
Wild contraction- spasm
Slight contraction - tonus
Sustained contraction - tetany or tetanus
option 3 Tetanus
As we learnt in
Disorders Of Muscular And Skeletal System -
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.