A myelinated axon has a sheath around it and a bore axon doesn't have it, it's open or exposed so to speak. T<span>he myelin is made up of fat and protein and works like insulation. these axons make up the white matter in the brain since it appears white. The sheath helps to keep the electrical current from leaving the axon and the myelin sheath provides a tract along which regrowth can occur. </span>
Buccinators are muscles in the cheek that help smiling.
Laris oculi are muscles helping close eyelids.
Orbicularis oris is a muscle that helps manipulate the mouth:
the correct answer is D. all the above are muscles that help facial expression.
50 is 16 times greater than 34
The best way to solve a transportation problem, is to give the following information:
m= The number of sources.
n= The number of destinations.
The total quantity available at each source.
The total quantity required at each destination.
The cost of transportation of one unit of the commodity from each source to each destination.
