Voluntary muscle contractions are initiated in:

Brain

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Spinal cord

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Heart

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None of the above

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Solution

The correct option is A
Brain

Voluntary muscle contractions are initiated in the brain, while involuntary reflexes are initiated in the spinal cord.

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Q. Question 5
Which is the correct sequence of the components of a reflex arc?

(a) Receptors→ Muscles→ Sensory neuron→ Motor neuron→ Spinal cord
(b) Receptors→ Motor neuron → Spinal cord → Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

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There are several important and delicate organs like spinal cord, heart, lungs, brain etc. in our body protected by bones. The skull protects the_______.

Voluntary muscle contractions are initiated in:

The correct option is A Brain Voluntary muscle contractions are initiated in the brain, while involuntary reflexes are initiated in the spinal cord.

The correct option is A
Brain

Voluntary muscle contractions are initiated in the brain, while involuntary reflexes are initiated in the spinal cord.