The Difference Between Myelinated and Unmyelinated Axons Is That

question 50

Multiple Choice

The difference between myelinated and unmyelinated axons is that

• A) Schwann cells wrap around myelinated axons in concentric layers.
• B) Schwann cells form more widely spaced nodes of Ranvier in unmyelinated axons.
• C) Schwann cells simultaneously surround multiple axons in myelinated axons.
• D) Schwann cells are not associated with unmyelinated axons.

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Definitions:

Psychosexual Development

Sigmund Freud's theory of the stages of child development, each characterized by a focus on pleasure from a specific area of the body, shaping personality.

Phallic Stage

A phase in Freud's psychosexual development, occurring from about ages 3 to 6, where the libido (sexual energy) focuses on the genital area.

Oral

Relating to the mouth, including the act of speaking, intake of food, or in medical terms, medication taken by mouth.

Fixation

An obsessive focus or attachment to a developmental stage, person, or object.