wiz-icon
MyQuestionIcon
MyQuestionIcon
5
You visited us 5 times! Enjoying our articles? Unlock Full Access!
Question

Unmyelinated axons differ from myelinated in that they

A
Are more excitable
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Lack nodes of Ranvier
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Are not capable of regeneration
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Are not associated with Schwann cells
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Lack nodes of Ranvier
Myelin sheath is discontinuous because of the presence of nodes of Ranvier. Nodes of Ranvier, the periodic gap in the insulating sheath (myelin) on the axon of certain neurons that serves to facilitate the rapid conduction of nerve impulses. However, nodes of Ranvier interrupt the insulation at intervals, and this discontinuity enables impulses to jump from node to node in a process known as saltatory conduction. Whereas unmyelinated axons (axon is not covered with myelin sheath) lack nodes of Ranvier and makes it different from the myelinates axon.

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Organisation of the Nervous System
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon