The Nervous System Test

Result

The Nervous System Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

When we move from dark to light, we fail to see for some time but soon the visibility becomes normal. What is this condition called?

A
Accomodation

B
Adaptation

C
Photoperiodism

D
Mutation
Question 2
1 / -0

What are the gaps through out the length of the myelin sheath called?

A
Synaptic clefts

B
Axons

C
Dendron

D
Node of Ranvier
Question 3
1 / -0

Anesthesia reduces pain by blocking nerve conduction due to

A
blockage of neurotransmitter receptors

B
blockage of Na⁺ channels

C
blockage of K⁺ channels

D
blockage of blood flow in the target organ
Question 4
1 / -0

Which of the following statements is incorrect about nerve impulse?

A
In normal condition, the outer side of the nerve fibre carries positive charge.

B
The condition when outer side of nerve fibre carries normal (+) charge is called depolarized state.

C
Nerve impulse travels at a maximum speed of about 100 metres per second only.

D
Repolarization of nerve takes place due to active transport of Na⁺ ions again to the outside.
Question 5
1 / -0

In neurons, axon is surrounded by a white insulating sheath. What is this sheath called?

A
Myelin sheath

B
Neurilemma

C
Node of Ranvier

D
Cyton
Question 6
1 / -0

Canal of Schleman is present at the junction of

A
sensory and non-sensory retina

B
choroid and ciliary body

C
sclera and cornea

D
ciliary body and iris
Question 7
1 / -0

What is `jumping of the action potential` at the Nodes of Ranvier called?

A
Recovery phase

B
Active phase

C
Saltatory conduction

D
Neurotransmission
Question 8
1 / -0

In mammalian eye, the power of accommodation is controlled by changing the shape of the lens. Which of the following governs it?

A
Cornea

B
Pupil

C
Iris

D
Ciliary body
Question 9
1 / -0

Which of the following prevents the mixing of impulses in the adjacent axons?

A
Myelin sheath

B
Acetylcholine

C
Synaptic cleft

D
Nissil granules
Question 10
1 / -0

Axon terminals are closely placed near the dendrites of other neurons but are not connected. What are such gaps called?

A
Node of Ranvier

B
Excited region

C
Synaptic clefts

D
Dendrite

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Re-Attempt Weekly Quiz Competition

The Nervous System Test - 5

Result

The Nervous System Test - 5

Score

-

Rank

-

SHARING IS CARING

Question 1

Accomodation

Adaptation

Photoperiodism

Mutation

Question 2

Synaptic clefts

Axons

Dendron

Node of Ranvier

Question 3

blockage of neurotransmitter receptors

blockage of Na+ channels

blockage of K+ channels

blockage of blood flow in the target organ

Question 4

In normal condition, the outer side of the nerve fibre carries positive charge.

The condition when outer side of nerve fibre carries normal (+) charge is called depolarized state.

Nerve impulse travels at a maximum speed of about 100 metres per second only.

Repolarization of nerve takes place due to active transport of Na+ ions again to the outside.

Question 5

Myelin sheath

Neurilemma

Node of Ranvier

Cyton

Question 6

sensory and non-sensory retina

choroid and ciliary body

sclera and cornea

ciliary body and iris

Question 7

Recovery phase

Active phase

Saltatory conduction

Neurotransmission

Question 8

Cornea

Pupil

Iris

Ciliary body

Question 9

Myelin sheath

Acetylcholine

Synaptic cleft

Nissil granules

Question 10

Node of Ranvier

Excited region

Synaptic clefts

Dendrite

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Question Analysis

My Perfomance

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Rank

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blockage of Na⁺ channels

blockage of K⁺ channels

Repolarization of nerve takes place due to active transport of Na⁺ ions again to the outside.