Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETZoologyNeural Control and Coordination

What is the difference between myelinated and nonmyelinated nerve fibres?

Options

  1. AMyelinated nerve fibres have a myelin sheath while nonmyelinated do not
  2. BNonmyelinated nerve fibres have a myelin sheath while myelinated do not
  3. CBoth myelinated and nonmyelinated nerve fibres have a myelin sheath
  4. DBoth myelinated and nonmyelinated nerve fibres do not have a myelin sheath

Correct answer

A. Myelinated nerve fibres have a myelin sheath while nonmyelinated do not

Step-by-step solution

Based on the number of axons and dendrites, neurons are divided into three types: multipolar (with one axon and two or more dendrites), bipolar (with one axon and one dendrite), and unipolar (cell body with one axon only).Nissl’s granules are granular bodies in the cell body of a neuron. They are composed of typical cell organelles and are also present in the dendrites. The synaptic knob is a bulb-like structure at the distal end of the axon of a neuron. It possesses synaptic vesicles containing neurotransmitters.

Practice Neural Control and Coordination on Quantrex Academy →

More from Neural Control and Coordination

Muscle contraction is initiated by a signal sent by the central nervous system through the release of __________. 2026The specific receptors for neurotransmitters in a synapse are present on : 2026Which of the following is not a part of human central neural system ? 2026Match List I with List II : Choose the correct answer from the options given below : 2024Match List-I with List -II array |l|l|l|l| & List-I & & List-II A. & Schwann cells & I. & Neurotransmitter B. & Synaptic knob & II. & Cerebral cortex C. & Bipolar neurons & III. & 2024Given below are two statements: Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callosum. Statement II: The brain stem consists of the medulla ob 2024The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleaseure, rage, fear, etc. are: 2023Given below are two statements: Statement I : The nose contains mucus-coated receptors which are specialised for receiving the sense of smell and are called olfactory receptors. St 2023 Full Neural Control and Coordination list All NEET PYQs