Masses of myelinated nerve fibers appear __________Blank.Multiple Choicebrownwhitetransparentgray

he central nervous system develops from a flat mass of tissue called the neural _________blank.Multiple Choicegroovetubeplatecrestfold

In multiple sclerosis, myelin sheaths Blank______.Multiple choice question.are lostthicken

Ventral rami of some spinal nerves join with each other to form a _________blank.Multiple Choicegangliondermatomecordplexusnerve

Myelin is rich in _________Blank.Multiple Choicecarbohydrateslipidssaltsnucleic acids

There are _________blank enlargements of the spinal cord where nerves supplying the extremities enter and leave.Multiple Choicetwothreefourfivesix