When one plate is composed of oceanic lithosphere and the other is composed of continental lithosphere, the denser oceanic plate is subducted, often forming an orogenic belt and associated mountain range. This type of convergent boundary is similar to the Andes or the Cascade Range in North America.hen one plate is composed of oceanic lithosphere and the other is composed of continental lithosphere, the denser oceanic plate is subducted, often forming an orogenic belt and associated mountain range. This type of convergent boundary is similar to the Andes or the Cascade Range in North America.
Myelinating Schwann cells wrap around axons of motor and sensory neurons to form the myelin sheath. The Schwann cell promoter is present in the downstream region of the human dystrophin gene that gives shortened transcript that are again synthesized in a tissue specific manner.
This is known as the myelin sheath. Myelin sheath is formed by special cells called Schwann cells. Schwann cells wrap around the axon and form the myelin to form the myelin sheath. This is the difference between Schwann cell and myelin sheath. Schwann cells and myelin sheaths are important for the effective and efficient transmission of nerve impulses through neurons.