[I and IV are correct] Statements about the mechanism of muscle contraction are given below:I. Acetylcholine is released

For Competitive Exams

10th CBSE Maths

Statements about the mechanism of muscle contraction are given below:

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

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

III. During muscle contraction isotropic band gets elongated.

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

Identify the correct statements.

I and IV are correct

I and III are correct

II and III are correct

I, Il and III are correct

Additional Questions

Which one of the following is a sesamoid bone?

Which one of the following bones is the only movable portion of the skull?

Which muscle is adapted to be highly resistant to fatigue?

Which of these is the contractile protein of a muscle?

Hinge joint occurs between

Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?

Which of the following is a skull bone?

Which one of the following is the correct matching of three items and their grouping category?

Items	Group
Cytosine, uracil, thiamine	Pyrimidines
Malleus, incus, cochlea	Ear ossicles
Ilium, ischium, pubis	Coxal bones of pelvic girdle
Actin, myosin, rhodopsin	Muscle proteins

Which of the following bones make up the structure of the hand?

Which joint occurs between humerus and radioulna?

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