Neurons Begin to Acquire Myelin in The fourth Month of Prenatal

question 75

Multiple Choice

Neurons begin to acquire myelin in the fourth month of prenatal development and this process continues ____________________.

• A) until birth.
• B) into infancy.
• C) through infancy into childhood.
• D) through infancy into childhood and adolescence.

---

Definitions:

Functional Hair Follicles

Hair follicles that are actively producing hair, indicating health and vitality of the hair growth cycle.

Hair Bulb

The rounded, club-shaped structure located at the base of the hair follicle, containing active cells that grow hair.

Cuticle

Outer, thin layer, usually horny—for example, the outer covering of hair or the growth of the stratum corneum onto the nail.

Medulla

The innermost part of an organ or structure, such as the central region of the kidney or the lower part of the brainstem.