myelin sheath animation

In myelinated fibres, the axons are covered by the myelin sheath all along except in regions called the Nodes of Ranvier. Thus the depolarization can take place only at the nodes. The diffusion of cations can also take place only at the nodal regions. So, the impu..

The speed of conduction, as mentioned earlier, is faster in myelinated fibres. It can reach up to 120m/s in these fibres. However, the presence of the sheath slows down the conduction to, at times, 0.5m/s. The speed of conduction in the non-myelinated fibres also depen..

The long axons of neurons along with the associated structures are called the nerve fibres. The fibres may be enclosed within sheaths called as myelin sheath..

The long axons of neurons along with the associated structures are called the nerve fibres. The fibres may be enclosed within sheaths called as myelin sheath. However, the action potential is not generated in the areas where there is a sheath over the f..

Nerve Fibres and Nerves - The long axons of neurons along with the associated structures are called the nerve fibres . The fibres may be enclosed within sheaths called as myelin sheath. These are called the myelinated fibres. Those that are not covered by the..

Nerve Fibres and Nerves - The long axons of neurons along with the associated structures are called the nerve fibres . The fibres may be enclosed within sheaths called as myelin sheath. However, the action potential is not generated in the areas where there is a s..

Question: The outermost covering of the nerve is called the ________. 1. perineurium 2. epineurium 3. myelin sheath 4. capsule Answer: ..

The junction between the axon and the dendrites of the next neuron is called the synapse. The end of the axon is branched into many fibres that are devoid of the myelin sheath. At the synapse, the axon fibres and dendrites are not in direct contact. The space between them is cal..

The spermatids formed as a result of maturation division is a typical animal cell with all the cell organelles present in it. In this form it cannot function as a male gamete. So many changes take place to change the non-motile spermatid into motile spermatozoan. The main aim of the chang..

Molecular Basis of Differentiation - All the cells of an organism receive the complete set of genes (total information) present in the fertilized egg through mitotic divisions. However, cells of an early embryo lose the potential for the expression of all the genes through the processes of inductio..