The Nervous System Test

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The Nervous System Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

Suppose the terminal ends of axon are in contact with dendrites of four adjacent neurons, the nerve impulse of the axon will

A
travel in one of the neurons because the impulse travels from dendrites of one neuron into the axon of another neuron

B
travel only in one neuron, which is in closest contact and with the same intensity

C
get distributed in all the four neurons resulting in weak impulse

D
travel in all the four neurons
Question 2
1 / -0

The space between the covering membranes of brain is filled with a watery fluid, which acts like a cushion to protect the brain from shocks. What is this fluid called?

A
Cerebral fluid

B
Cerebrospinal fluid

C
Meningial fluid

D
Synovial fluid
Question 3
1 / -0

Which of the following is an example of conditioned reflex?

A
Withdrawal of hand on touching a hot surface

B
Sneezing during cold

C
Withdrawal of hand on pricking a needle

D
Salivation in dog on seeing bread
Question 4
1 / -0

What is the pre-excitation potential difference between outside and inside of a nerve called?

A
Reaction potential

B
Action potential

C
Spike potential

D
Resting potential
Question 5
1 / -0

A frog with crushed brain is pinched on the leg and the leg is drawn away. It is

A
automatic motor response

B
neurotransmitter induced response

C
conditional reflex

D
simple reflex
Question 6
1 / -0

Which of the following chemicals sets a new impulse in the dendrites of the adjacent neuron?

A
Epinephrine

B
Acetylcholine

C
Nor-epinephrine

D
Neurilemma
Question 7
1 / -0

Which of the following statements is not correct?

A
Optic nerve arising from the eye and ending in the brain is called mixed nerve.

B
A nerve arising from brain and supplying blood to the muscles of the eyeball for rotating the eye is a motor nerve.

C
The myelin sheath acts like an insulation.

D
A wave of irritability is called an impulse.
Question 8
1 / -0

What is the sheet of fibres connecting the two cerebral hemispheres called?

A
Corpus callosum

B
Meninges

C
Frontal lobe

D
Diencephalon
Question 9
1 / -0

Which of the following is true about association neurons?

A
They convey the impulse from receptor to the brain.

B
They carry impulse from the main nervous system to an effector.

C
They interconnect the sensory and motor neurons.

D
They conduct depolarization impulse.
Question 10
1 / -0

During development of action potential in a nerve fibre, why are the positive and negative charges on outer and inner sides of axon membranes reversed?

A
Due to movement of K⁺ ions out of the axon.

B
As more K⁺ ions enter the axon than Na⁺ ions leave the same.

C
As more Na⁺ ions enter the axon than K⁺ ions leave the same.

D
Due to all Na⁺ ions entering the axon.

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The Nervous System Test - 6

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The Nervous System Test - 6

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Question 1

travel in one of the neurons because the impulse travels from dendrites of one neuron into the axon of another neuron

travel only in one neuron, which is in closest contact and with the same intensity

get distributed in all the four neurons resulting in weak impulse

travel in all the four neurons

Question 2

Cerebral fluid

Cerebrospinal fluid

Meningial fluid

Synovial fluid

Question 3

Withdrawal of hand on touching a hot surface

Sneezing during cold

Withdrawal of hand on pricking a needle

Salivation in dog on seeing bread

Question 4

Reaction potential

Action potential

Spike potential

Resting potential

Question 5

automatic motor response

neurotransmitter induced response

conditional reflex

simple reflex

Question 6

Epinephrine

Acetylcholine

Nor-epinephrine

Neurilemma

Question 7

Optic nerve arising from the eye and ending in the brain is called mixed nerve.

A nerve arising from brain and supplying blood to the muscles of the eyeball for rotating the eye is a motor nerve.

The myelin sheath acts like an insulation.

A wave of irritability is called an impulse.

Question 8

Corpus callosum

Meninges

Frontal lobe

Diencephalon

Question 9

They convey the impulse from receptor to the brain.

They carry impulse from the main nervous system to an effector.

They interconnect the sensory and motor neurons.

They conduct depolarization impulse.

Question 10

Due to movement of K+ ions out of the axon.

As more K+ ions enter the axon than Na+ ions leave the same.

As more Na+ ions enter the axon than K+ ions leave the same.

Due to all Na+ ions entering the axon.

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Due to movement of K⁺ ions out of the axon.

As more K⁺ ions enter the axon than Na⁺ ions leave the same.

As more Na⁺ ions enter the axon than K⁺ ions leave the same.

Due to all Na⁺ ions entering the axon.