____________________ Internet Access Comes in Two Varieties: One-Way and Two-Way

question 23

Short Answer

____________________ Internet access comes in two varieties: one-way and two-way.

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Definitions:

Myelin Sheath

Envelope surrounding most axons; formed by Schwann cell membranes being wrapped around the axon.

Circle of Willis

A circular network of arteries at the base of the brain that supplies blood to the brain and surrounding structures.

Superficial Meningeal

Relating to the meninges, specifically the outer layer that covers the brain and spinal cord.

Arachnoid Layer

A web-like middle layer of the meninges, which are protective coverings of the brain and spinal cord.