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Identify the correct statements

I. Acetylcholine is released when the neural signal reaches to the motor end plate

II. Muscle contraction is initiated by signals sent by CNS  a sensory neuron

III. During muscle contraction, isotropic bands get elongated

IV. Repeated activation of the muscles can lead to lactic acid accumulation in them

The option with correct choices is

a)

I and III

b)

I and IV

c)

II and III

d)

I and II



Question ID - 4666 | SaraNextGen Top Answer

Identify the correct statements

I. Acetylcholine is released when the neural signal reaches to the motor end plate

II. Muscle contraction is initiated by signals sent by CNS  a sensory neuron

III. During muscle contraction, isotropic bands get elongated

IV. Repeated activation of the muscles can lead to lactic acid accumulation in them

The option with correct choices is

a)

I and III

b)

I and IV

c)

II and III

d)

I and II

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

The junction between a motor neuron and sarcolemma of muscle is called neuromuscular junction

(i) A neural signal reaching this junction (motor end plate) release a neurotransmitter

(ii) Repeated activation of muscles can lead to the accumulation of lactic acid due to anaerobic break down of glucose in them

127 votes


127