The unmyelinated areas on myeliated nerve fibres are
A
Nodes of Ranvier
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Synaptic knobs
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Schwann cells
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Dendrite
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A Nodes of Ranvier Schwann/Schwarm cells of peripheral nervous system produce the myelin sheath around the myelinated fibers. Gaps between two Schwann cells form nodes of Ranvier which are the unmyelinated areas. Dendrites are the small extension of nerve cells that receive signals from sensory receptors or other neurons and brings them towards the cell body. The synaptic knob is the small button like structure present at the end of the axonal branch at the synapse and serves to store the neurotransmitters which are released in the synaptic cleft. The correct answer is A.