Module 1 quiz (nerve cells and nerve impulses) Exam 100% Accurate!

Small, charged molecules can cross the cell membrane through ____. mitochondria diffusion ribosomes protein channels - ANSWERProtein channels What do neurons have that other cells do not? a plasma membrane large, branching extensions an endoplasmic reticulum protein channels - ANSWERlarge, branching extensions What type of glial cells myelinate axons in the brain and spinal cord? astrocytes oligodendrocytes radial glia Schwann cells - ANSWERoligodendrocytes As a general rule, axons convey information ____. toward dendrites of their own cell toward their own cell body to surrounding glia away from their own cell body - ANSWERaway from their own cell body Which type of glia builds myelin sheaths around axons in the periphery of the body? Schwann cells astrocytes radial glia oligodendrocytes - ANSWERSchwann cells An axon has many branches, each of which swells at its tip. These are known as