The Placenta Contains a Membrane That Acts as a Filter

question 73

Multiple Choice

The placenta contains a membrane that acts as a filter. It allows for which of the following to pass from mother to fetus?

• A) Nutrients only
• B) Oxygen only
• C) Germs only
• D) Nutrients, oxygen, and germs

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Definitions:

Brain Activity

The various physical and physiological functions carried out by the brain, including neural activity, blood flow, and energy consumption.

Circadian Rhythm

An internal biological clock that regulates the sleep-wake cycle over a roughly 24-hour period.

Dissociation

describes a psychological state in which a person disconnects from their thoughts, feelings, memories, or sense of identity, often as a response to traumatic events.

Restorative Theory

A theory suggesting that sleep is necessary for the body and mind to repair and rejuvenate from the day's activities and stresses.