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Spinal Cord

What is spina...

Question

What is spinal cord ? Is it a bone or muscle or anything else

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Solution

Spinal cord is a collection of nerve fibres and tissues which connects nearly all parts of the body to the brain.

spinal cord is not a bone or muscle. But this spinal cord is covered by spinal column. Which is made of bones.

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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

Q. Which of the following carry the pulses from the brain or spinal cord to the muscles?

One of the following gives the correct sequence of the components in a reflex arc. This is :

(a) Receptors $\to$ Muscle $\to$ Sensory neuron $\to$ Motor neuron $\to$ Spinal cord

(b) Receptors $\to$ Motor neuron $\to$ Spinal cord $\to$ Sensory neuron $\to$ Muscle

(c) Receptors $\to$ Spinal cord $\to$ Sensory neuron $\to$ Motor neuron $\to$ Muscle

(d) Receptors $\to$ Sensory neuron $\to$ Spinal cord $\to$ Motor neuron $\to$ Muscle

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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