What Are the Nodes of Ranvier

question 94

Multiple Choice

What are the nodes of Ranvier?

• A) gates in the membrane that admit all ions freely
• B) gaps in the myelin sheath
• C) branching points in an axon
• D) places where dendrites join the cell body

---

Definitions:

Human Blindness

A condition where a person lacks visual perception due to physiological or neurological factors.

Vitamin A

A fat-soluble vitamin important for normal vision, immune system function, and reproduction, found in foods such as carrots, spinach, and dairy products.

Developing Countries

Nations with a lower living standard, undeveloped industrial base, and low Human Development Index relative to other countries.

Malnourished

The condition of not getting enough nutrients from food for a healthy life.