(B) In a myelinated nerve fiber,the axon is covered by a myelin sheath,which is formed by Schwann cells. The myelin sheath is interrupted at intervals

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(B) In a myelinated nerve fiber,the axon is covered by a myelin sheath,which is formed by Schwann cells. The myelin sheath is interrupted at intervals known as the Nodes of Ranvier. In contrast,an unmyelinated nerve fiber is enclosed by a Schwann cell that does not form a myelin sheath around the axon,and consequently,it lacks the Nodes of Ranvier.

Class 11 Biology Neural Control and Coordination Neuron as Structural and Functional Unit of Neural System

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How does an unmyelinated axon differ from a myelinated axon?

A
More excitable
B
Lack of Nodes of Ranvier
C
Incapable of regeneration
D
Not associated with Schwann cells

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Class 11 Questions

Class 11

Biology Questions

Chapter

Neural Control and Coordination

Subtopic

Neuron as Structural and Functional Unit of Neural System

The covering of $Schwann$ cells is associated with:

Easy

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Which of the following statements is true regarding the Nodes of Ranvier?

MediumAIPMT 2002

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Match the following:
Column-$I$ Column-$II$
$1$. Cell body $p$. Transmit impulses towards the cell body
$2$. Dendrites $q$. Transmit impulses away from the cell body
$3$. Synaptic vesicles $r$. Contain cytoplasm and granular bodies
$s$. Neurotransmitters

Medium

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Which type of neurons are found in the retina?

Medium

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In a neuron,ion channels are made of $.....P....$ and are located in $.....Q.....$.
$\quad\quad P\quad\quad Q$

Medium

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Column-$I$	Column-$II$
$1$. Cell body	$p$. Transmit impulses towards the cell body
$2$. Dendrites	$q$. Transmit impulses away from the cell body
$3$. Synaptic vesicles	$r$. Contain cytoplasm and granular bodies
	$s$. Neurotransmitters

How does an unmyelinated axon differ from a myelinated axon?

Similar Questions

The covering of $Schwann$ cells is associated with:

Which of the following statements is true regarding the Nodes of Ranvier?

Match the following:Column-$I$Column-$II$$1$. Cell body$p$. Transmit impulses towards the cell body$2$. Dendrites$q$. Transmit impulses away from the cell body$3$. Synaptic vesicles$r$. Contain cytoplasm and granular bodies$s$. Neurotransmitters

Which type of neurons are found in the retina?

In a neuron,ion channels are made of $.....P....$ and are located in $.....Q.....$.$\quad\quad P\quad\quad Q$

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Match the following:
Column-$I$ Column-$II$
$1$. Cell body $p$. Transmit impulses towards the cell body
$2$. Dendrites $q$. Transmit impulses away from the cell body
$3$. Synaptic vesicles $r$. Contain cytoplasm and granular bodies
$s$. Neurotransmitters

In a neuron,ion channels are made of $.....P....$ and are located in $.....Q.....$.
$\quad\quad P\quad\quad Q$