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Standard X
Biology
Spinal Nerves
A person, who...
Question

A person, who met with an accident, was partially paralysed and lacked a sense of feeling after treatment. Which part of the nervous system was affected by the accident?

A
The olfactory lobes seemed to have become defective
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B
The spinal cord seemed damaged
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C
The left cerebral hemisphere was damaged
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D
The oculomotor nerve seemed damaged
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Solution

The correct option is D The spinal cord seemed damaged
A spinal cord injury occurs when there is damage to the spinal cord either from trauma, loss of its normal blood supply, or compression from tumor or infection. If the injury to the spinal cord occurs lower in the back it can cause paraplegia-paralysis of both legs only. So, the correct option is "B" (The spinal cord seemed damaged).

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Q.

Adarsh lost his memory and partially paralysed after he met with an accident. which part of Adarsh's brain was affected?


Q. Name the following:

(i) Nervous system including brain and spinal cord.
(ii) Sympathetic and parasympathetic jointly forms.
(iii) Terminal end of spinal cord.
(iv) The third neurone that is involved in reflexes, other than simple reflex.
(v) Study of structure and functions of nervous system.
(vi) Nerve which carry impulse from sensory receptor to CNS.
(vii) The nerve which carry impulse from CNS to muscles.
(viii) The peripheral matter of spinal nerve.
(ix) The peripheral matter of the brain.
(x) Outermost meningial membrane of spinal cord.
(xi) Structural and metabolic unit of nervous tissue.
(xii) The biological term given to the protective membranes of the brain.
(xiii) Cavity in which brain is situated.
(xiv) The neobrain.
(xv) The important centre of emotion.
(xvi) Paired lobes of midbrain related to the vision.
(xvii) Paired lobes of the brain related to the sense of smell.
(xviii) Fissure between the cerebral hemispheres.
(xix) Inability to write.
(xx) The busiest organ of the body.
(xxi) Inability to speak.
(xxii) The longest cranial nerve.
(xxiii) Thoracolumber region of spinal cord form.
(xxiv) Highly branched axon's end.
(xxv) Neuron only with axon.
(xxvi) White part of the eye.
(xxvii) Short sightedness.
(xxviii) Part of internal ear related to balance.
(xxix) The photosensitive pigment present in the rod cells of the retina.
Q. A person was riding a two-wheeler without wearing a helmet. He met with an accident and sustained a head injury. He was dead before he was shifted to the hospital and it was found that his death was due to breathlessness and heart failure. Which part of his brain might have been damaged? Justify your answer.
Q.

Why have the words, 'pretended' and 'seemed' been used in the lines:

...Pretended to believe every single word

of what the tiger king said.

And seemed to be taken in by all the lies.

How does the sense of these lines connect with the line 'Ajamil wasn't a fool'?

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It was a wave with steep, very slowly falling crests. Never in my life had I seen such an enormous wave. It seemed to be touching the sky.

Therefore gigantic means ____________________________.

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