Which of the Following Is the Most Likely Explanation for the Lack

question 20

Multiple Choice

Which of the following is the most likely explanation for the lack of a filter blocking the passage of alcohol between the maternal and fetal circulations in humans?

• A) There has not been enough time to evolve such a barrier.
• B) Such a barrier would probably also block important molecules that need to be passed to the fetus.
• C) The maternal and fetal blood mix directly together in an area with many villi, so a barrier is impossible.
• D) Alcohol has some positive effects on the fetus, so evolution has resulted in an intermediate level of filtering that blocks all but the worst abuses of alcohol.

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Definitions:

Anterior Vaginal Wall Prolapse

A condition where the front wall of the vagina weakens and sags, often causing discomfort and other symptoms.

Urinary Retention

The inability to completely empty the bladder, which can lead to discomfort and the potential for urinary tract infections.

Vaginal Pain

Discomfort or ache in the vaginal area, which can stem from a variety of causes including infections, inflammation, or other gynecological conditions.

Pelvic Exam

A physical examination of the female pelvic organs to assess general health or diagnose medical conditions.