Asked by Maibileyvis Capote on Jun 14, 2024
Verified
Gaps or interruptions in the myelin sheath are called ________.
A) internodes
B) tight junctions
C) neurofilaments
D) nodes of Ranvier
E) gap junctions
Myelin Sheath
A fatty layer that covers and insulates nerve fibers to enhance the speed of electrical impulses.
Nodes of Ranvier
Gaps in the myelin sheath of a nerve fiber where the axon is exposed, allowing for the rapid transmission of nerve impulses through saltatory conduction.
Internodes
Sections of a plant stem between two nodes, where leaves and branches are attached.
- Describe the mechanism and importance of myelination and its effect on the transmission of nerve impulses.
Verified Answer
MF
Muhammad FadhilJun 20, 2024
Final Answer :
D
Explanation :
Nodes of Ranvier are the gaps or interruptions in the myelin sheath of axons, which play a crucial role in the rapid conduction of nerve impulses along myelinated neurons.
Learning Objectives
- Describe the mechanism and importance of myelination and its effect on the transmission of nerve impulses.