The Replacement of Red Bone Marrow with Yellow Bone Marrow

question 22

Multiple Choice

The replacement of red bone marrow with yellow bone marrow in the limbs occurs

• A) in fetal life.
• B) by 2 years of age.
• C) before 8 years of age.
• D) between 8 and 18 years of age.

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Definitions:

Oocyte

Immature ovum.

"Window of Opportunity"

describes a period when unique circumstances allow for a particular action to be taken that may not be possible at another time.

Ovulation

Release of an ovum, or secondary oocyte, from the vesicular follicle.

Blastocyst

An early-stage embryo consisting of a sphere of cells surrounding an inner fluid-filled cavity, occurring before implantation into the uterine wall.