Nodes of Ranvier are also known as:
Correct answer: C. All of these
- A. Myelin sheath gaps
- B. Neurofibril node
- C. All of these
- D. None
Explanation
Nodes of Ranvier are also known as: Myelin Sheath Gaps: Nodes of Ranvier refer to the gaps or interruptions in the myelin sheath that surrounds certain axons in the nervous system. These gaps are important for the proper conduction of nerve impulses. Neurofibril Nodes: Another term used to describe Nodes of Ranvier is neurofibril nodes. These nodes play a crucial role in enhancing the speed and efficiency of nerve impulse propagation along the axons. Nodes of Ranvier are named after the French anatomist and histologist, Louis-Antoine Ranvier, who first described them in the late 19th century. They are critical for saltatory conduction, a process in which the nerve impulses jump from one node to the next, allowing for faster transmission of signals along the axon.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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