Question:

Myelinated nerve fibres are present in spinal and cranial nerves Myelinated nerves conduct impulses more rapidly than unmyelinated nerves

Updated On: Jul 6, 2022
  • If both assertion and reason are true and reason is the correct explanation of assertion
  • If both assertion and reason are true but reason is not the correct explanation of assertion
  • If assertion is true but reason is false
  • If both assertion and reason are false
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

Myelinated nerve fibres are present in spinal and cranial nerves. Myelinated nerve fibres are enclosed by Schwann cells that form myelin sheath around the axon. The conduction of impulses is faster in myelinated nerve fibre (or medullated nerve fibre) because when an impulse travels along a medullated nerve fibre, it does not proceed uniformly along the length of the axis cylinder, but jumps from one node of Ranvier to the next. This is called the saltatory conduction of impulses. This way the conduction is faster in myelinated nerve fibre
Was this answer helpful?
0
0

Top Questions on neural control and coordination

View More Questions

Notes on neural control and coordination

Concepts Used:

Neural Control and Coordination

Neural System:

Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.

Coordination System:

Coordination is the process by which two or more organs work together to accomplish each other's duties. Increased muscle activity increases the supply of oxygen and the demand for energy while we exercise. When we cease exercising, our nerves, heart, lungs, and kidneys all return to normal. As a result, all of the organs' functions are properly integrated in order to conduct the exercise and supply the appropriate conditions while exercising. Similarly, in the human body, the neurological and endocrine systems work together to coordinate all of the organ activities.