the nerve is completely separated, like with a cut nerve. Both a fourth and fifth degree injury require surgery for recovery. A sixth degree injury is a combination the other types of nerve injury and recovery and treatment will vary depending on which type of nerve injury is present. Nerve Recovery and Regeneration Following nerve injury, the nerve will try to repair itself by sprouting regenerating nerve units. These regenerating units will then try to grow down the nerve to reinnervate muscle or skin. If they make a correct connection, motor nerve to muscle or sensory nerve to skin, then recovery of muscle function
The movement of particle (random) suspended in a fluid is called Brownian motion. Brownian motion's mathematical model has several applications in real world. This theory is closely related to that of normal distribution.
What Is Simple Diffusion? In a solution or gas that has an area of high numbers of particles and an area of lower numbers of particles, the particles will diffuse, or move, from the area of higher to the area of lower concentration. This is known as simple diffusion, or passive diffusion. Simple diffusion does not require energy. Instead, it happens by random motion. Random motion is defined as movement that occurs by chance because there is no order or regular system by which the movements of the particles shift in a solution or gas.