The Placenta Is Usually Functioning to Deliver Nutrients and Oxygen

question 87

Multiple Choice

The placenta is usually functioning to deliver nutrients and oxygen to, and remove waste from, the embryonic blood by the ________ week of pregnancy.

• A) first
• B) second
• C) third
• D) fourth
• E) fifth

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Definitions:

Breathing

The process of taking air into and expelling it from the lungs, essential to supply the body with oxygen and remove carbon dioxide.

Upright Position

A body posture where an individual stands or sits straight, with the spine aligned vertically.

Diaphragm

A dome-shaped muscular partition separating the thorax from the abdomen in mammals, playing a major role in breathing.

Musculomembranous Wall

The layer composed of both muscle and membrane, often referring to structures within the body such as the digestive tract.