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NEET Biology question

BiologyLocomotion and MovementNEET

Identify the correct statements I. Acetylcholine is released when the neural signal reaches the motor end plate. II. Muscle contraction is initiated by signals sent by CNS via 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

Answer: (B)

Solution

Acetylcholine is indeed released at the motor end plate (I true) and repeated muscle activation does lead to lactic acid buildup and fatigue (IV true), but contraction is initiated

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Question ID VK-117048