★ Neuroanatomy Quiz
What is the primary function of the Nodes of Ranvier in a neuron?
A. To store neurotransmitters
B. To allow ions to flow in and out, speeding up nerve signal transmission
C. To produce myelin
D. To connect neurons to blood vessels
Select your answer:
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Life Processes › ViewUpper chamber of the heart. Receives blood from the body & lungs.
A. Atrium
B. Artery
C. Ventricle
D. Valve
Excretory System › View
Which of the following is not part of excretion?
A. remove toxic materials
B. remove undigested food
C. remove waste product of metabolism
D. remove substances in excess of requirement