In a research lab, student studies the effect of alpha gamma coactivation on muscle contraction.
What is the single most likely effect of central excitation of alpha motor neurons only?

Question

In a research lab, student studies the effect of alpha gamma coactivation on muscle contraction. 
 What is the single most likely effect of central excitation of alpha motor neurons only?

Answer

Contraction of extrafusal muscle fibres with stretch of intrafusal fibres

Answer

Both extrafusal and intrafusal muscle fibres are contracted

Answer

Contraction of extrafusal muscle fibres with relaxation of intrafusal fibres

Answer

Inactivation of tendon organ that cause muscle contraction

Answer

Both extrafusal and intrafusal muscle fibres are stretched

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In a research lab, student studies the effect of alpha gamma coactivation on mus...

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